chemistry comprehension 1

Which TWO of the following subatomic particles are inside the nucleus?

• protons

• electrons

• neutrons

• There are no subatomic particles in the nucleus of an atom.

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NGSS.HS-PS1-8

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

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NGSS.MS-PS1-1

a positively-charged particle in the atoms nucleus

• proton

• neutron

• electron

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NGSS.HS-PS1-8

Which label correctly identifies the nucleus of the atom?

• A

• B

• C

• D

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NGSS.HS-PS1-8

What is the mass number of this atom?

• 1

• 3

• 4

• 7

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NGSS.MS-PS1-1

Sodium (Na) is found in period 

• 3
• 2
• 4
• 1

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NGSS.HS-PS1-1

Sodium (Na) is found in group 

• 1
• 2
• 3
• 4

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NGSS.HS-PS1-1

a chart showing all of the elements arranged according to their properties

• atomic mass

• proton

• neutron

• periodic table

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NGSS.HS-PS1-1

The smallest unit found in silver is

• element

• nucleus

• atom

• cell

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NGSS.MS-PS1-1

What period is this element in?

• 1

• 18

• 10

• 2

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NGSS.HS-PS1-1