[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the point at which rays or waves meet after reflection or refraction?
Choice list: A. Focal Point
B. Concave Point
C. Converse Point
D. Diverse Point
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the name for the distance between the focal point and the mid-line of the lens in this diagram?
Choice list: A. focal length
B. aperture
C. lens diameter
D. convex length
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many intersection points are needed to achieve focus?
Choice list: A. 2
B. 0
C. 1
D. 3
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many parts are shown in the diagram below?
Choice list: A. 3
B. 5
C. 4
D. 6
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the term for the distance between the lens and the focal point?
Choice list: A. focus
B. convex
C. focal length
D. length
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
If the incident ray was incident at an angle of zero degrees, what would be the angle of the refracted ray?
Choice list: A. 45 degrees
B. Greater than 90 degrees
C. 90 degrees
D. Zero degrees
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Which ray is the incoming ray?
Choice list: A. Normal ray
B. Reflected ray
C. Incident ray
D. None
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the angle that is created by the Refracted Ray?
Choice list: A. Angle of incident
B. Normal
C. Angle of refraction
D. Incident ray
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What would happen to angle of refraction if angle of incident decreases?
Choice list: A. angle of refraction remains same
B. angle of refraction also decreases
C. angle of refraction increases
D. not enough information
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Which is the angle of incidence above water?
Choice list: A. C
B. D
C. B
D. A
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What are the name of the rays that strike the water?
Choice list: A. Indirect Rays
B. Reflected Rays
C. Incident Rays
D. Direct Rays
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many degrees is the angle of refraction?
Choice list: A. 30
B. 45
C. 15
D. 75
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
If light hits liquid A 30 degrees from the liquid's surface, how many degrees from normal is the light refracted?
Choice list: A. 45 degrees
B. 70 degrees
C. 50 degrees
D. 60 degrees
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
A light that passes through a transparent material exits in what angle relative how it entered?
Choice list: A. opposite angle
B. lesser angle
C. same angle
D. greater angle
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many times does light refract through a glass window?
Choice list: A. 3
B. 4
C. 1
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many types of refractive index are there?
Choice list: A. 1
B. 4
C. 3
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How long is the glass medium?
Choice list: A. 5 mm
B. 2 mm
C. 9 mm
D. 6 mm
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
At least how many mediums are required for reflection of light?
Choice list: A. 3
B. 2
C. 4
D. 1
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many times is “normal” represented on the diagram?
Choice list: A. 4
B. 1
C. 2
D. 3
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Different parts of the air
Choice list: A. full glass
B. air medium
C. strong air
D. mild air
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Among water, glass, and diamond, which of these refracts light the most?
Choice list: A. glass
B. diamond
C. cannot be determined
D. water
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many angles there are in the diagram below?
Choice list: A. 4
B. 3
C. 5
D. 1
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many types of rays can form based on the material?
Choice list: A. 2
B. 1
C. 4
D. 3
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
If the incident angle becomes smaller what happens to the reflected angle?
Choice list: A. Stays the same
B. Becomes larger
C. Becomes horizontal
D. Becomes smaller
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What happens to the light rays as they hit water, glass, etc?
Choice list: A. They change directions
B. They turn around
C. Nothing happens
D. They continue in the same direction
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Which of the following sentences is the one correct?
Choice list: A. The light ray refracts when it passes from air to water/glass.
B. The light ray doesn't refract when it passes from air to water/glass
C. The ligh ray only refracts when it passes from water to glass.
D. The light rays never refracts.
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many light rays were refracted in the diagram?
Choice list: A. 3
B. none
C. 2
D. 1
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is a line (straight or curved) that is perpendicular to the light's wave fronts?
Choice list: A. Energy Rays
B. Sun Rays
C. Optic Rays
D. Light Rays
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Identify the optics system shown below.
Choice list: A. Reflection
B. Concave Lens
C. Refraction
D. Convex Lens
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the angle between an incident ray and the normal?
Choice list: A. Angle of incidence
B. Angle of refraction
C. Angle of glass
D. Angle of air
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
At what angle does the light pass straight through a glass?
Choice list: A. 45
B. 60
C. 90
D. 30
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many angles are shown in the diagram?
Choice list: A. 3
B. 5
C. 2
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the angle between refracted ray and the normal line called?
Choice list: A. angle of reflection
B. angle of refraction
C. angle of incidence
D. boundary
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Before reaching the eyepice, what does the Image hit?
Choice list: A. A primary mirror and a secondary mirror
B. Nothing
C. Only a primary mirror
D. Only a secondary mirror
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
From where do you have to watch to see the image, using a reflecting telescope?
Choice list: A. Eyepiece
B. Primary mirror
C. Image
D. Secondary mirror
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many mirrors does the telescope have?
Choice list: A. 3
B. 4
C. 1
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many parts are there in a reflecting telescope?
Choice list: A. 5
B. 3
C. 2
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many lenses are used in the setup shown in the diagram?
Choice list: A. 4
B. 3
C. 2
D. 1
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What does the lens do?
Choice list: A. It makes the image small
B. It distorts the image
C. It transfers the image to the eye
D. It magnifies the image
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What happens if the lens is removed from the telescope?
Choice list: A. The image is darker.
B. The image is upside-down.
C. The image will not focus.
D. The telescope functions as normal.
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What part protects the elevation adjustment drum?
Choice list: A. protection cap
B. scope tube
C. ocular assembly
D. mountaing rail
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Which part adjusts the elevation?
Choice list: A. ocular assembly
B. Elevation adjustment drum
C. protection cap
D. mounting rail
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many parts of the ocular assembly are there?
Choice list: A. 5
B. 6
C. 4
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many parts of the telescope are identified in the image?
Choice list: A. 7
B. 8
C. 6
D. 9
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How does a telescope affect what you see?
Choice list: A. Has no effect on the size.
B. Makes images appear bigger.
C. Makes images darker.
D. Makes images appear smaller
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is directly underneath the protection cap?
Choice list: A. apperture in second focal plane
B. picture reversal assembly
C. ocular assembly
D. elevation adjustment arm
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Where does the light travel first?
Choice list: A. The center
B. The eyepiece
C. The subjective lens
D. Through the objective lens
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Light enters through the...
Choice list: A. light ray
B. objective lens
C. eyepiece
D. f
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Light goes toward what?
Choice list: A. the eyepiece
B. lens
C. objective
D. focal light
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
The objective lens directs the light towards which part?
Choice list: A. Object
B. Eyepeice
C. Air
D. Lens
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many lenses does the simple telescope have?
Choice list: A. 1
B. 3
C. 4
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many parts are shown in the diagram below?
Choice list: A. 4
B. 5
C. 2
D. 3
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What part does light from the environment first come through?
Choice list: A. light ray
B. eyepiece
C. objective lens
D. f
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Where does light enter in the top telescope?
Choice list: A. eyepiece
B. objective lens
C. tripod
D. mount
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
In a refracting telescope, what does light pass through before reaching the eyepiece?
Choice list: A. Concave lens
B. Objective mirror
C. Flat mirror
D. Objective lens
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many mirrors are inside the lower telescope?
Choice list: A. 1
B. 4
C. 2
D. 3
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many types of telescope are shown in the diagram?
Choice list: A. 4
B. 2
C. 1
D. 3
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What does the viewer look through to see the magnified image?
Choice list: A. Eyepiece focal length
B. Objective lense
C. Eyepiece lens
D. Objective focal length
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the part of the telescope that your eye looks through to see a distant object?
Choice list: A. Eyepiece
B. Objective
C. Focus
D. Focal Length
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many lenses are shown in the diagram?
Choice list: A. 2
B. 3
C. 1
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many types of lens are used in simplified refracting telescope?
Choice list: A. 3
B. 1
C. 2
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What happens if the objective lens is removed from the telescope?
Choice list: A. The image remains the same.
B. The image is shown upside-down.
C. The image is darker.
D. The image will not focus.
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many mirrors are in a Newtonian reflector?
Choice list: A. two
B. four
C. three
D. five
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many parts are labels in the Newtonian reflector?
Choice list: A. 5
B. 4
C. 2
D. 3
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
If the smaller mirror is removed, what happens?
Choice list: A. No image appears to the eyepiece.
B. The image in the eyepiece is brighter.
C. The image in the eyepiece is upside-down.
D. The image in the eyepiece is darker.
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What supports the telescope?
Choice list: A. Aperure
B. Eye piece
C. Mount
D. Optical tube
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
When objects in the distance are blurry, this piece should be adjusted.
Choice list: A. focuser
B. mount
C. optical tube
D. eyepiece
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many parts of the telescope are in the diagram below?
Choice list: A. 5
B. 6
C. 8
D. 7
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What kind of lens are used in telescopes?
Choice list: A. Diffuse glass
B. Convex
C. Concave
D. Mirror
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Identify the lens
Choice list: A. R
B. H
C. Y
D. M
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Identify the plano-convex
Choice list: A. X
B. S
C. M
D. N
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Identify the eyepiece
Choice list: A. E
B. R
C. C
D. U
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
formation of a clear image by light reflected from a very smooth surface
Choice list: A. convex
B. laser
C. concave
D. regular reflection
E. optics
F. image
G. diffuse reflection
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
A convex lens
Choice list: A. is thicker at the edges than in the middle.
B. forms only real upside-down images.
C. may form enlarged or reduced images.
D. causes rays of light to diverge.
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
device that produces a very focused beam of light of just one wavelength
Choice list: A. convex
B. laser
C. concave
D. regular reflection
E. optics
F. image
G. diffuse reflection
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Concave mirrors are used
Choice list: A. as side mirrors on cars.
B. behind car headlights.
C. in compound microscopes.
D. in cameras.
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
curving outward like the outside of a bowl
Choice list: A. convex
B. laser
C. concave
D. regular reflection
E. optics
F. image
G. diffuse reflection
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
The optical instrument that produces a beam of very focused light is a
Choice list: A. laser.
B. microscope.
C. telescope.
D. none of the above
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Which surface is most likely to result in diffuse reflection?
Choice list: A. completely still water in a puddle
B. choppy water in a lake
C. a plane glass mirror
D. a convex mirror
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
copy of an object that is formed by reflected or refracted light
Choice list: A. convex
B. laser
C. concave
D. regular reflection
E. optics
F. image
G. diffuse reflection
Answer with the option's letter from the given choices directly.

[Assistant] F


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
formation of a blurry image by light reflected from a rough surface
Choice list: A. convex
B. laser
C. concave
D. regular reflection
E. optics
F. image
G. diffuse reflection
Answer with the option's letter from the given choices directly.

[Assistant] G


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
A compound microscope contains
Choice list: A. convex lenses
B. plane mirror
C. convex mirror
D. two of the above
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
curving inward like the inside of a bowl
Choice list: A. convex
B. laser
C. concave
D. regular reflection
E. optics
F. image
G. diffuse reflection
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
study of visible light and the ways it can be used
Choice list: A. convex
B. laser
C. concave
D. regular reflection
E. optics
F. image
G. diffuse reflection
Answer with the option's letter from the given choices directly.

[Assistant] E


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Moving the lens of a camera controls the amount of light that enters the camera.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
A laser beam consists of photons of light of a single wavelength.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
A reflecting telescope does not refract light.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Magnifications of all the lenses of a microscope are added to yield the overall magnification of the
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Light refracts when it enters a new medium at an angle other than 90 .
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Only mirrors reflect light and form images.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
All mirrors can form virtual images.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
The image formed by a plane mirror looks exactly like the object in every way.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
The focal point of a concave mirror is the point in front of the mirror where reflected rays intersect.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
A concave mirror can form only virtual images.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
The image formed by a convex mirror is always upright and reduced in size.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Light travels more quickly through glass than through air.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
The more curved the surface of a lens is, the more it refracts light.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
The lens in a camera is a convex lens.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
A refracting telescope uses a convex lens to collect and focus light.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
The image of an object that is formed by a concave mirror is always
Choice list: A. real.
B. virtual.
C. upright.
D. none of the above
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Which statement about concave lenses is true?
Choice list: A. They are thicker in the middle than at the edges.
B. They cause rays of light to diverge.
C. They form upside-down images.
D. They form enlarged images.
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Whether a convex lens forms a real or virtual image depends on
Choice list: A. where the object is located relative to the focus.
B. whether the object is placed right-side up.
C. how large the object is.
D. how curved the lens is.
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Optical instruments include
Choice list: A. microscopes.
B. telescopes.
C. cameras.
D. all of the above
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Both microscopes and telescopes use
Choice list: A. concave lenses.
B. convex lenses.
C. convex mirrors.
D. all of the above
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
The image produced by a camera is
Choice list: A. virtual.
B. enlarged.
C. reduced.
D. two of the above
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
A laser device produces a very focused beam of light by
Choice list: A. lining up the crests and troughs of light waves.
B. using only very high frequencies of light waves.
C. using convex lenses to enlarge light waves.
D. shining light waves through an optical fiber.
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
How does the magnetic north pole align with the earth's magnetic field?
Choice list: A. Parallel to the geographic north pole
B. Perpendicular to the south polar field line
C. Perpendicular to the north polar field line
D. Parallel to the north polar field line
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
How many geographic poles does the earth have?
Choice list: A. 4
B. 3
C. 2
D. 1
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
How many degrees are between the geographic north pole and the magnetic north pole?
Choice list: A. 10
B. 13
C. 12
D. 11.5
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
The magnetic and geographic pole are separated by how many degrees?
Choice list: A. 11.5
B. 12.5
C. 13.5
D. 10.5
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
What is the angle difference between the north magnetic pole and the geographic north pole?
Choice list: A. 10 degrees
B. 11.5 degrees
C. 12.5 degrees
D. 11 degrees
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
How many magnetic poles does the earth have?
Choice list: A. 4
B. 3
C. 2
D. 1
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
The magnetosphere is stronger in some specific areas. Which?
Choice list: A. Greenwitch
B. The equator
C. The center of the Earth
D. The poles
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
Where is the magnetic north pole located?
Choice list: A. Equator
B. West of the geographic north pole
C. At the rotation axis
D. East of the geographic north pole
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
How many poles are represented in the diagram?
Choice list: A. 3
B. 2
C. 1
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
How many types of pole are shown?
Choice list: A. 4
B. 2
C. 6
D. 5
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
What is the imaginary line called that divides the earth into northern and southern hemispheres?
Choice list: A. Magnetic north pole
B. Equator
C. Geographic north pole
D. Rotational Axis
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
What is the area between the Sun and Earth wherein solar wind is deflected by Earth's magnetic field?
Choice list: A. Magnetopause
B. Magnetosphere
C. Solar Wind
D. Van Allen belts
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
How many magnetic poles are found on Earth?
Choice list: A. 4
B. 3
C. 1
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
How many types of belt are shown in the picture?
Choice list: A. 1
B. 2
C. 3
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
How many types of van allen belt are there?
Choice list: A. 2
B. 4
C. 5
D. 3
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
In this diagram about earth as a magnet, which belt occurs beneath Outer van Allen belt?
Choice list: A. Earth's magnetic field
B. Inner core
C. Inner van Allen belt
D. Outer core
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
Which pole is marked red?
Choice list: A. South geographic pole
B. North geographic pole
C. North magnetic pole
D. South magnetic pole
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
What do the blue arrows represent?
Choice list: A. Lithosphere
B. Magnetosphere
C. Exosphere
D. Ionasphere
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
How many magnetic poles does the Earth have?
Choice list: A. 2
B. 4
C. 1
D. 3
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
How many types of magnetic poles are shown?
Choice list: A. 3
B. 1
C. 2
D. 5
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
What is the continuous flow of charged particles from the sun that permeates the solar system?
Choice list: A. South Connected
B. Magnetosphere
C. Solar Wind
D. North Connected
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
How many magnetic poles are found on Earth?
Choice list: A. 2
B. 1
C. 3
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
What would happen if the earth polar shifts?
Choice list: A. the earth's magnetic field will reverse
B. the earth will lose its orbit
C. the earth will spin clockwise
D. the earth will stop spinning
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
What is the degree difference between the North Magnetic Pole and the Geographic North Pole?
Choice list: A. 11.5 degrees
B. South Magnetic Pole
C. Geographic South Pole
D. 2670 degrees
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
How many magnetic poles does the Earth have?
Choice list: A. 2
B. 3
C. 1
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
How many poles are there in total?
Choice list: A. 1
B. 3
C. 4
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
How many degrees is the difference between the earth's north magnetic pole and its geographic north pole?
Choice list: A. 11
B. 10.5
C. 12
D. 11.5
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
Where on this diagram is the earth's magnetic at its strongest?
Choice list: A. At the geographic south pole
B. At the magnetic poles
C. At the geographic north pole
D. At the equator
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
The magnetic field of the earth is similar to a magnetic field of a
Choice list: A. electromagnet
B. bar magnet
C. disc magnet
D. compass
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
How many North poles are there?
Choice list: A. 4
B. 1
C. 2
D. 3
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
How many types of poles are shown?
Choice list: A. 4
B. 1
C. 2
D. 3
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
At which angle is the magnetic north pole and geographic north pole different?
Choice list: A. 90 degrees
B. 0 degrees
C. 180 degrees
D. 11.5 degrees
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
What kind of magnetic field is show on the figure?
Choice list: A. Reverse
B. Normal
C. Inverse
D. Constant
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
How many poles does a magnet have?
Choice list: A. Four
B. One
C. Two
D. Three
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
How many types of poles are shown?
Choice list: A. 3
B. 2
C. 1
D. 5
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
This photo represents the earth's magnetic field. What is the proper term for this magnetic field?
Choice list: A. toposphere
B. south pole
C. magnetosphere
D. north pole
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
What is the next layer underneath the Earth's crust?
Choice list: A. Outer Core
B. Axis
C. The Mantle
D. Inner Core
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
Which part of the diagram shown below is responsible for the Earth's magnetic field?
Choice list: A. Mantle
B. North Pole
C. Crust
D. Inner Core
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
What lies between the outer core and Earth's crust?
Choice list: A. north pole
B. south pole
C. mantle
D. inner core
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
How many parts make up the earth?
Choice list: A. 3
B. 2
C. 4
D. 1
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
How many magnetic poles are found on Earth?
Choice list: A. 1
B. 3
C. 4
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
What is the innermost part of the earth called?
Choice list: A. mantle
B. crust
C. inner core
D. outer core
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
The north end of a compass needle always points to 90 north latitude.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
The idea that Earth is a magnet was first proposed in
Choice list: A. 1600.
B. 1700.
C. 1800.
D. 1900.
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
Earths magnetic field extends outward from the planet in all directions.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
The magnetosphere is
Choice list: A. a huge region.
B. strongest at the poles.
C. the region where Earth exerts magnetic force.
D. all of the above
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
Earths magnetic poles have switched places many times over the past hundred years.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
What causes Earths magnetism?
Choice list: A. The movement of charged particles in Earths outer core.
B. The revolution of Earth around the sun.
C. The magnetism of the sun.
D. none of the above
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
Evidence for magnetic field reversals comes from
Choice list: A. rocks on the ocean floor.
B. metals in Earths liquid core.
C. measurements of Earths magnetosphere.
D. seismograph readings from inside Earth.
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
Once molten rocks harden, their magnetic domains are frozen in place forever.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
Earths outer core is made up mainly of iron and nickel.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
Earths magnetic field is beneficial to living things because it
Choice list: A. protects them from harmful particles.
B. can be used for navigation.
C. never changes.
D. two of the above
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
Charged particles move inside Earth when it spins on its axis.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
Harmful particles from the sun are repelled by Earths magnetic poles.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
Magnetic reversals were discovered by William Gilbert in 1600.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
Earths south magnetic pole is the same as Earths south geographic pole.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
Migrating birds may detect Earths magnetic field with structures in their eyes.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
Earth has north and south magnetic poles like a bar magnet.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
Like a bar magnet, planet Earth
Choice list: A. exerts magnetic force.
B. has a magnetic field.
C. has magnetic poles.
D. all of the above
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
Earths magnetic and geographic poles are located in the same places.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
Earths true north magnetic pole is actually located near Earths
Choice list: A. equator.
B. south magnetic pole.
C. south geographic pole.
D. none of the above
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
Earths magnetic field extends outward from Earth for
Choice list: A. a few kilometers.
B. about 100 kilometers.
C. about 330 kilometers.
D. several thousand kilometers.
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
Scientists no longer accept the idea of magnetic reversals.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
The magnetosphere
Choice list: A. completely surrounds Earth.
B. is found only near Earths poles.
C. exists over a region larger than Earth.
D. two of the above
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
Earths magnetic field occurs only over the north and south poles.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
Earths magnetic force is exerted over a distance.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
Which statement about magnetic reversals is false?
Choice list: A. Magnetic reversals have occurred hundreds of times.
B. The most recent magnetic reversal occurred 330 million years ago.
C. There is hard evidence showing that magnetic reversals have occurred.
D. Scientists do not know for certain why magnetic reversals have occurre
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
The idea that Earth is a magnet was first proposed
Choice list: A. by William Gilbert in 1800.
B. after seismographs were developed.
C. before scientists learned about Earths inner structure.
D. around the same time that Earths outer core was discovere
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
Many migrating birds
Choice list: A. navigate using Earths magnetic field.
B. may be able to see Earths magnetic field.
C. have natural compasses that they use for migration.
D. all of the above
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
about 80 north latitude
Choice list: A. magnetosphere
B. north geographic pole
C. outer core
D. north magnetic pole
E. magnetic reversal
F. compass
G. inner core
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
solid sphere that makes up Earths center
Choice list: A. magnetosphere
B. north geographic pole
C. outer core
D. north magnetic pole
E. magnetic reversal
F. compass
G. inner core
Answer with the option's letter from the given choices directly.

[Assistant] G


[User]
<image>
<image>
exactly 90 north latitude
Choice list: A. magnetosphere
B. north geographic pole
C. outer core
D. north magnetic pole
E. magnetic reversal
F. compass
G. inner core
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
region deep inside Earth that consists of liquid metals
Choice list: A. magnetosphere
B. north geographic pole
C. outer core
D. north magnetic pole
E. magnetic reversal
F. compass
G. inner core
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
Earths magnetic field
Choice list: A. magnetosphere
B. north geographic pole
C. outer core
D. north magnetic pole
E. magnetic reversal
F. compass
G. inner core
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
switching of Earths north and south magnetic poles
Choice list: A. magnetosphere
B. north geographic pole
C. outer core
D. north magnetic pole
E. magnetic reversal
F. compass
G. inner core
Answer with the option's letter from the given choices directly.

[Assistant] E


[User]
<image>
<image>
navigation device that always points north
Choice list: A. magnetosphere
B. north geographic pole
C. outer core
D. north magnetic pole
E. magnetic reversal
F. compass
G. inner core
Answer with the option's letter from the given choices directly.

[Assistant] F


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many protons are in an Aluminium atom?
Choice list: A. 14
B. 13
C. 27
D. 40
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What does the atomic number indicate?
Choice list: A. A total number of atoms
B. A total number of electrons
C. A total number of protons
D. A total number of neutrons
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the Mass Number of “Mg”?
Choice list: A. 27
B. 35
C. 17
D. 12
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many positively charged particles does Cl have?
Choice list: A. 18
B. 34
C. 17
D. 35
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Identify the number commonly used to distinguish an atom
Choice list: A. Protons Number
B. Neutrons Number
C. Mass number
D. Electrons Number
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the atomic number for Cl?
Choice list: A. 35
B. 12
C. 17
D. 27
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the atomic number of magnesium?
Choice list: A. 17
B. 35
C. 12
D. 27
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What number in the diagram shows the atomic number?
Choice list: A. e
B. H
C. 4
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is atomic number of the element Helium?
Choice list: A. 4
B. 8
C. 6
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What element is this?
Choice list: A. Nitrogen
B. Helium
C. Neon
D. Oxygen
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the mass of He?
Choice list: A. Four
B. Two
C. Six
D. One
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What does the element symbol represent?
Choice list: A. Hydrodgen
B. Mercury
C. Carbon Dioxide
D. Helium
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the atomic number of cobalt?
Choice list: A. CO2
B. Co
C. 27
D. 59
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Which of the following shows the number of protons in an element?
Choice list: A. atomic number
B. element symbol
C. mass number
D. melting point
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is represented in the superior left corner of the diagram?
Choice list: A. The atomic Number
B. The symbol of the element
C. The charge
D. The mass Number
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
An increase of the mass number without a change in the symbol of the element indicates which of the following?
Choice list: A. A change in the number of electrons
B. A change in the number of neutrons
C. A different element
D. A change in the number of protons
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Symbols of elements are always this character.
Choice list: A. Numbers
B. Emoji
C. A mixture
D. Letters
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Which among these has the highest atomic number?
Choice list: A. Tritium
B. Deuterium
C. Protium
D. Protium and Deuterium
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many H elements are there in an atom?
Choice list: A. 4
B. 3
C. 5
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Why is the mass number different for the 3 H elements?
Choice list: A. because the other H are heavier
B. because they are not the same H
C. because they are different elements
D. because the 2nd and 3rd are isotopes of H
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Which part(s) of an atom create the mass number?
Choice list: A. protron
B. proton + neutron
C. neutron
D. none
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What's the mass number of Mg?
Choice list: A. 3
B. 12
C. 2+
D. 24
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
As shown in this diagram, what is the atomic number of hydrogen?
Choice list: A. 24
B. 3
C. 1
D. 12
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many neutrons does Magnesium (Mg) have? A) 24; B) 12; C) 2; D) 22
Choice list: A. C) 2
B. A) 24
C. B) 12
D. D) 22
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the charge of Mg?
Choice list: A. 2
B. 3
C. 12
D. 1
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Which among these has a positive charge?
Choice list: A. Helium
B. Hydrogen
C. Chlorine
D. Magnesium
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the atomic number of this atom?
Choice list: A. 13
B. 40
C. 31
D. 27
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the relative atomic mass?
Choice list: A. 33
B. 1
C. 27
D. 7
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
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<image>
<image>
How many protons does this element have?
Choice list: A. 12
B. 2
C. 3
D. 6
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What makes up the mass number
Choice list: A. protons and electrons
B. protons only
C. electrons and neutons
D. protons and neutrons
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is atomic number of Carbon?
Choice list: A. 8
B. 12
C. 6
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many neutrons are there in the picture below?
Choice list: A. 2
B. 12
C. 6
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
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<image>
<image>
According to the diagram, how many electrons does Sodium have on its third electron shell?
Choice list: A. zero
B. one
C. eight
D. two
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
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<image>
<image>
How many protons are on the sodium atom?
Choice list: A. 8
B. 23
C. 11
D. 12
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What does the number, 23, represent in this diagram?
Choice list: A. Atomic Number
B. Neutrons Only
C. Protons Only
D. Mass Number
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Identify the part of the diagram that refers to the number of protons in an atom.
Choice list: A. Atomic Number
B. Symbol
C. Charge
D. Mass Number
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the number represented in the upper left of a Chemical Symbol?
Choice list: A. charge
B. atomic diameter
C. atomic number
D. mass number
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many elements are shown in this diagram?
Choice list: A. 4
B. 2
C. 3
D. 1
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many protons are on the sodium atom?
Choice list: A. 23
B. 11
C. 22
D. 12
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
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<image>
<image>
What is the mass number for Na?
Choice list: A. 11
B. 12
C. 23
D. +
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the atomic number of Molybdenum?
Choice list: A. 95
B. 42
C. 94
D. 95.94
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the atomic number of this element?
Choice list: A. molybdenum
B. 42
C. Mo
D. 95.94
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the atomic symbol of molybdenum?
Choice list: A. Mo
B. Mb
C. Ma
D. Mm
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many atomic symbols are there in the diagram?
Choice list: A. two
B. three
C. four
D. one
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What is the element name of Mo?
Choice list: A. 95.94
B. Missouri
C. 42
D. molybdenum
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
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<image>
<image>
What is the atomic number of the carbon?
Choice list: A. 4
B. 1
C. 2
D. 6
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Which elemental property is indicated in the upper-left-hand corner of the abbreviated chemical element?
Choice list: A. Atomic Volume
B. Atomic Mass
C. Atomic Number
D. Atomic Symbol
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
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<image>
<image>
How many neutrons does the element Carbon have?
Choice list: A. 6
B. 8
C. 2
D. 12
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many numbers are shown in the picture?
Choice list: A. 7
B. 2
C. 5
D. 1
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Atomic symbols are always...
Choice list: A. Emoji
B. Letters
C. Letters and numbers
D. Numbers
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What element is being represented in this diagram?
Choice list: A. Oxygen
B. Helium
C. Carbon
D. Carbon Dioxide
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
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<image>
<image>
Identify the Atomic Mass.
Choice list: A. U
B. 146
C. 92
D. 238
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many elements of the periodic table are shown in the figure?
Choice list: A. 2
B. 3
C. 4
D. 1
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many neutrons does this element have?
Choice list: A. 146
B. 238
C. 73
D. 92
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What does the positive sign stand for?
Choice list: A. Electon
B. Neutron
C. Nucleus
D. Proton
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
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<image>
<image>
What particles are positives?
Choice list: A. Neutron
B. Electron
C. Atoms
D. Protons
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
What two types of particles are inside the Nucleus?
Choice list: A. Protons and Neutrons
B. Protons and Electrons
C. Electrons and Neutrons
D. Ions and Electrons
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Which of these don't belong inside the nucleus?
Choice list: A. protons
B. neither of them
C. electrons
D. neutrons
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many parts of an atom are there?
Choice list: A. 3
B. 4
C. 1
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
How many protons does this atom's nucleus contain?
Choice list: A. 9
B. 5
C. 4
D. 13
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
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<image>
<image>
What charge does a proton have inside an atom?
Choice list: A. Positive charge
B. Neutral charge
C. Negative charge
D. Positive and negative charge
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Where are the neutrons and protons contained?
Choice list: A. Atom
B. Electrons
C. Nucleus
D. Neutron
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Which ion is not in the nucleus?
Choice list: A. Electrons
B. Ions
C. Protons
D. Neutrons
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
The structure electrons surround is known as which of the following?
Choice list: A. neutron
B. proton
C. nucleus
D. atom
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
<image>
Which charged particle is not in the nucleus of an atom?
Choice list: A. electron
B. photon
C. neutron
D. proton
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
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<image>
<image>
How many particles with no electric charge are there in this picture?
Choice list: A. 6
B. 7
C. 8
D. 9
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
<image>
<image>
<image>
<image>
<image>
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<image>
<image>
In this diagram, the nucleus contains protons and what?
Choice list: A. Electrons
B. Neutrons
C. Atoms
D. Membranes
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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<image>
<image>
<image>
<image>
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<image>
<image>
What charge do electrons have?
Choice list: A. none
B. positive
C. neutral
D. negative
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
<image>
<image>
<image>
<image>
<image>
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<image>
<image>
What particles are found in the nucleus?
Choice list: A. Electrons & protons
B. Electrons & neutrons
C. Electrons
D. Protons & neutrons
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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<image>
<image>
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<image>
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<image>
How many electron clouds are depicted?
Choice list: A. 1
B. 4
C. 3
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
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<image>
What is used to describe where electrons are when they go around the nucleus of an atom?
Choice list: A. Electron Cloud
B. Nucleus
C. Electron
D. Protons
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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<image>
What kind of charge does a Proton hold?
Choice list: A. Negative
B. No Charge
C. Neutral
D. Positive
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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<image>
Which item would emit energy and spirally fall on the nucleus?
Choice list: A. Neutron
B. Atom
C. Proton
D. Electron
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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<image>
<image>
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<image>
<image>
What is the negative part of an atom?
Choice list: A. Electron
B. Proton
C. Neutron
D. Croton
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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<image>
What particles can be found inside the nucleus?
Choice list: A. Electrons and Protons
B. Protons and Neutrons
C. Electrons
D. Protons Only
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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<image>
How many elements are there in an atom?
Choice list: A. 4
B. 3
C. 2
D. 5
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
<image>
<image>
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<image>
<image>
How many Neutrons are shown here?
Choice list: A. 4
B. 2
C. 1
D. 3
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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<image>
<image>
<image>
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<image>
What is not contained in nucleus?
Choice list: A. Proton
B. Neotron
C. Many protons
D. electron
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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<image>
<image>
<image>
<image>
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<image>
Which of the following can be found inside of a Proton?
Choice list: A. Quark
B. Nucleus
C. Electron
D. Neutron
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
<image>
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<image>
<image>
<image>
<image>
<image>
Which particles are contained in the nucleus of an atom?
Choice list: A. electron and neutron
B. neutron and proton
C. neutron only
D. proton and electron
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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<image>
How many electrons are represented?
Choice list: A. 1
B. 3
C. 4
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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<image>
<image>
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<image>
<image>
How many protons are in the diagram?
Choice list: A. 6
B. 7
C. 8
D. 3
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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<image>
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How is the neutron electrically neutral?
Choice list: A. it doesn't have positive charge
B. it has no charge at all
C. its negative and positive charges cancel out
D. it doesn't have a negative charge
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
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<image>
How many electrons are in the atom below?
Choice list: A. 9
B. 5
C. 8
D. 6
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
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What is the relationship between the number of protons and the number of electrons?
Choice list: A. There is always one more proton than electron
B. There is the same number of them
C. There is no relation
D. There is always double the number of electrons than the number of protons
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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Which part of the atom is negatively charged?
Choice list: A. Neutron
B. Electron
C. Nucleus
D. Proton
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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<image>
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How many protons are shown in the diagram?
Choice list: A. 3
B. 5
C. 4
D. 6
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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<image>
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<image>
Which of the following is not a part of an atom?
Choice list: A. electrode
B. electron
C. proton
D. nucleus
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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<image>
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<image>
<image>
Which particle has a positive electric charge?
Choice list: A. Nucleus
B. Proton
C. Electron
D. Neutron
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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<image>
How many electrons are in the diagram?
Choice list: A. 3
B. 4
C. 2
D. 1
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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<image>
How many neutrons are present in nucleus?
Choice list: A. 3
B. 2
C. 1
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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<image>
How many electrons are represented on the outer shell?
Choice list: A. 6
B. 3
C. 4
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
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How many electrons orbit the nucleus?
Choice list: A. 7
B. 4
C. 5
D. 6
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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What is the charge of the electron in reference to the proton?
Choice list: A. more negative
B. more positive
C. The charge of an electron is opposite but equal to the charge of a proton. Atoms have the same number of electrons as protons. As a result, the negative and positive charges "cancel out."
D. they are the same
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
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What particles are surrounding the proton?
Choice list: A. neutron
B. atom
C. valence electron
D. nucleus
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
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How many valence electrons are present in the atom?
Choice list: A. 4
B. 3
C. 2
D. 1
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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Silicon as how many valence electrons?
Choice list: A. 6
B. 4
C. 8
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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Identify the most condensed part of an atom
Choice list: A. Nucleus
B. Nucleolus
C. Shell K
D. Photons
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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<image>
Which of the particles gives unique properties to elements?
Choice list: A. proton
B. neutron
C. electron
D. nucleus
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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Where are electrons located?
Choice list: A. Inside the nucleus
B. Next to the neutrons
C. Inside and outside the nucleus
D. Outside the nucleus
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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<image>
<image>
How many electrons are in this diagram?
Choice list: A. 13
B. 12
C. 11
D. 8
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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<image>
How many protons are shown in the diagram?
Choice list: A. 6
B. 7
C. 2
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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What is the nucleous made of?
Choice list: A. Electrons and Neutrons
B. Protons and Neutrons
C. Protons and Electrons
D. Electrons Only
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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<image>
What is the center of an atom called?
Choice list: A. Nucleus
B. Neutron
C. Proton
D. Electron
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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What attracts the electron to the nucleus?
Choice list: A. Neutron
B. Electron
C. Nucleus
D. Proton
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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<image>
How many electrons are in the image?
Choice list: A. 1
B. 3
C. 2
D. 8
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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How many parts are there in an atom?
Choice list: A. 2
B. 5
C. 3
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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Atoms of each type of element have a characteristic number of what particle?
Choice list: A. electrons
B. neutrons
C. protons
D. nucleus
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
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<image>
How many electrons are in the diagram?
Choice list: A. 6
B. 7
C. 12
D. 5
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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How many protons are there in a carbon atom?
Choice list: A. 12
B. 7
C. 5
D. 6
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
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Can a carbon atom still be formed if 2 protons and 2 neutrons are removed?
Choice list: A. Yes
B. No
C. Cannot determine from the given information
D. Maybe
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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Identify the atomic number of Hydrogen
Choice list: A. 3
B. 1
C. 2
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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The amount of which particle determines if an atom is an isotope?
Choice list: A. Proton
B. Electron
C. Neutron
D. Hydrogen
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
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What did we add to protium for it to become deuterium?
Choice list: A. A proton
B. Atomic number
C. A neutron
D. An electron
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
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What does the plus (+) symbol signify?
Choice list: A. Protons
B. Neutrons
C. Nucleus
D. Electrons
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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How many neutrons raise the atomic weight by 2?
Choice list: A. 2
B. 4
C. 1
D. 5
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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What is the atomic weight of all the isotopes depicted in the diagram added together? A) 38; B) 39; C) 40; D) 41
Choice list: A. C) 40
B. A) 38
C. D) 41
D. B) 39
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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What would be the atomic weight of a carbon 15 atoms?
Choice list: A. 22
B. 11
C. 14
D. 15
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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Which has 2 extra neutrons?
Choice list: A. Unstable Carbon Atom
B. Stable Carbon Atom
C. Unstable- Radioactive Carbon Isotope
D. Stable Carbon Isotope
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
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What do the two extra neutrons do to the carbon atom?
Choice list: A. They cause the number of electrons to increase
B. They make it unstable
C. There are no two extra neutrons
D. They do not affect it
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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Which carbon isotope has an extra neutron?
Choice list: A. stable carbon isotope
B. unstable carbon isotope
C. unstable carbon atom
D. stable carbon atom
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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From the diagram, how many carbon isotopes are there?
Choice list: A. 2
B. 1
C. 3
D. 0
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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How many extra neurons does the unstable carbon isotope have?
Choice list: A. 2
B. 3
C. 4
D. 1
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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What do you call a subatomic particle with a symbol p or p+?
Choice list: A. Electron
B. Proton
C. Neutron
D. Carbon
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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What makes the oxygen stable?
Choice list: A. proton
B. neutron
C. valence shell electron
D. energy configuration
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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Oxygen 16 and 18 are called what?
Choice list: A. Isotopes
B. Protons
C. Ions
D. Neutrons
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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Oxygen-16 has how many protons?
Choice list: A. 12
B. 6
C. 8
D. 10
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
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How many electrons are there in Deuterium?
Choice list: A. 1
B. 2
C. 3
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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Identify which has eight neutrons.
Choice list: A. Carbon-13
B. Carbon-14
C. Carbon-15
D. Carbon-12
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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What's the difference between carbon-12 and carbon-13?
Choice list: A. One has one more neutron
B. None
C. One has one more proton than the other
D. One has two more protons
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
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How many neutrons are found in Carbon-14?
Choice list: A. 14
B. 8
C. 7
D. 6
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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How many protons does carbon-12 contain?
Choice list: A. 5
B. 6
C. 8
D. 7
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
<image>
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The following forms of Carbon are called what?
Choice list: A. Chiral molecules
B. Ions
C. Isomers
D. Isotopes
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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How many neutrons does Tritium have?
Choice list: A. 3
B. 2
C. 1
D. 4
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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Adding the number of protons and neutrons will result to:
Choice list: A. Mass Number
B. Number of ions
C. Atomic Number
D. Number of electrons
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
<image>
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Which is radioactive?
Choice list: A. Carbon-13
B. Stable
C. Carbon-12
D. Carbon-14
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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Based on the stable carbon 12 how does the neutron change when it becomes radioactive?
Choice list: A. decreases
B. doubles
C. stays the same
D. increases by 2
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
<image>
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How many protons are in carbon-13?
Choice list: A. 2
B. 5
C. 6
D. 8
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
<image>
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How many electrons are in all three of the atoms pictured?
Choice list: A. 13
B. 6
C. 14
D. 12
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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How many neutrons are in an unstable carbon atom?
Choice list: A. 7
B. 14
C. 8
D. 6
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
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How many neutrons does carbon-13 have?
Choice list: A. 7
B. 6
C. 9
D. 8
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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How many molecules are?
Choice list: A. 6
B. 4
C. 2
D. 3
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
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How many neutrons are there in carbon-13?
Choice list: A. 8
B. 5
C. 7
D. 6
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
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How many neutrons does carbon-13 have?
Choice list: A. 8
B. 6
C. 9
D. 7
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
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What does the green circle represent?
Choice list: A. Carbon
B. Atom
C. Neutron
D. Proton
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
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What does hydrogen become if one adds two neutrons to it?
Choice list: A. leuterium
B. quaternion
C. deuterium
D. tritium
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
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Which of these 3 atoms would be the heaviest?
Choice list: A. Tritium
B. Deuterium
C. Data Insufficient?
D. Hydrogen
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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How many neutrons does the 18O Isotope have?
Choice list: A. 10
B. 9
C. 2
D. 6
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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How many protons do the oxygen isotopes in the diagram have?
Choice list: A. 16
B. 9
C. 10
D. 8
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
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What is the atomic number of the protium?
Choice list: A. 1
B. 3
C. 4
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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Which has the higher N
Choice list: A. 16o
B. 8P
C. 18o
D. 14o
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
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electrically neutral atomic particle inside the nucleus of an atom
Choice list: A. electron
B. ion
C. isotope
D. neutron
E. nucleus
F. proton
G. quark
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
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The smallest particles of an element that still have the elements properties are
Choice list: A. quarks.
B. gluons.
C. protons.
D. atoms.
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
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atom that differs in its number of neutrons from other atoms of the same element
Choice list: A. electron
B. ion
C. isotope
D. neutron
E. nucleus
F. proton
G. quark
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
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Which statement is true about the nucleus of an atom?
Choice list: A. It makes up most of the atoms volume.
B. It makes up most of the atoms mass.
C. It contains protons and electrons.
D. It is neutral in electric charge.
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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negatively charged atomic particle that moves around the nucleus of an atom
Choice list: A. electron
B. ion
C. isotope
D. neutron
E. nucleus
F. proton
G. quark
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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The strong force explains why
Choice list: A. electrons are attracted to the nucleus.
B. the nucleus does not fly apart.
C. electrons are smaller than protons.
D. none of the above
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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The mass number of an atom is its number of
Choice list: A. electrons.
B. protons.
C. neutrons.
D. protons plus neutrons.
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
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positively charged atomic particle inside the nucleus of an atom
Choice list: A. electron
B. ion
C. isotope
D. neutron
E. nucleus
F. proton
G. quark
Answer with the option's letter from the given choices directly.

[Assistant] F


[User]
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type of particle that makes up protons and neutrons
Choice list: A. electron
B. ion
C. isotope
D. neutron
E. nucleus
F. proton
G. quark
Answer with the option's letter from the given choices directly.

[Assistant] G


[User]
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When a fluorine atom gains an electron, it becomes a(n)
Choice list: A. positive ion.
B. isotope.
C. cation.
D. anion.
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
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charged particle that forms when atom gains or loses electron(s)
Choice list: A. electron
B. ion
C. isotope
D. neutron
E. nucleus
F. proton
G. quark
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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tiny region at the center of an atom that contains protons and neutrons
Choice list: A. electron
B. ion
C. isotope
D. neutron
E. nucleus
F. proton
G. quark
Answer with the option's letter from the given choices directly.

[Assistant] E


[User]
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All protons are exactly the same.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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Electrons have the same mass as protons.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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Atoms may be positive or negative in charge.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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All atoms of a given element have the same number of electrons.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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There are three quarks in each neutron.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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Atoms are the smallest particles of matter.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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An atom always has the same number of electrons as neutrons.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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The nucleus is at the center of the atom.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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Atoms have no electric charge.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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The strong force keeps electrons moving around the nucleus.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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Electrons have almost no mass.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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The mass of an atom equals the sum of its protons and neutrons.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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For most elements, isotopes are named for their atomic number.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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Each proton consists of three quarks.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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Quarks are held together by gluons.
Choice list: A. true
B. false
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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If an atom were the size of a football stadium, the nucleus would be about the size of a
Choice list: A. microwave oven.
B. basketball.
C. pea.
D. car.
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
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The number of protons in atoms is
Choice list: A. the same for all atoms.
B. unique for each element.
C. always equal to the number of neutrons.
D. none of the above
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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The strong force
Choice list: A. affects only nearby particles.
B. is stronger than electric force.
C. is not effective if the nucleus is too big.
D. all of the above
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
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A neutron has the same mass as a(n)
Choice list: A. nucleus.
B. electron.
C. proton.
D. quark.
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
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A nitrogen atom has an atomic number of 7 and a mass number of 14. How many protons, neutrons, and electrons does it have?
Choice list: A. 7 protons, 14 neutrons, 7 electrons
B. 14 protons, 7 neutrons, 7 electrons
C. 7 protons, 7 neutrons, 7 electrons
D. 7 protons, 7 neutrons, 14 electrons
Answer with the option's letter from the given choices directly.

[Assistant] C


[User]
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If an atom loses electrons, it becomes a(n)
Choice list: A. isotope.
B. cation.
C. anion.
D. gluon.
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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How many neutrons are there in the most common isotope of hydrogen?
Choice list: A. zero
B. one
C. two
D. three
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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How many groups are there in the periodic table of elements?
Choice list: A. 17
B. 18
C. 15
D. 16
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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The noble gases are members of which group of the periodic table?
Choice list: A. Group 2
B. Group 1
C. Group 17
D. Group 18
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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What element comes between Pb and Po?
Choice list: A. Bi
B. Sb
C. Sn
D. Te
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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How many Boxes are in Group 1-1?
Choice list: A. 7
B. 3
C. 10
D. 8
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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How many lanthanides are there in the periodic table?
Choice list: A. 15
B. 12
C. 14
D. 16
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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Which letter(s) represent the element copper?
Choice list: A. Cu
B. Cr
C. Co
D. Au
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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What is Helium?
Choice list: A. liquid
B. metal
C. solid
D. Nonmetal
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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What element comes before the start of lanthanide series of elements?
Choice list: A. Carbon
B. Ferrum
C. Aluminium
D. Barium
Answer with the option's letter from the given choices directly.

[Assistant] D


[User]
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How many nonmetals are there in the periodic table?
Choice list: A. 21
B. 15
C. 54
D. 2
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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What element corresponds for liquid metal?
Choice list: A. Hg
B. H
C. Nb
D. Mg
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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Elements under the group 8A of the periodic table are called what?
Choice list: A. Noble Gases
B. Metalloids
C. Halogens
D. Other Nonmetals
Answer with the option's letter from the given choices directly.

[Assistant] A


[User]
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What group in the periodic table do halogens belong?
Choice list: A. 3A
B. 7A
C. 7B
D. 8A
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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What is an element that is a noble gas?
Choice list: A. In
B. Ar
C. O
D. H
Answer with the option's letter from the given choices directly.

[Assistant] B


[User]
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How many Halogen elements are in the Periodic Table?
Choice list: A. 15
B. 3
C. 10
D. 6
Answer with the option's letter from the given choices directly.

[Assistant] D