Atoms and Nuclear Review

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

The subatomic particle with a negative charge is the

• electron
• proton
• neutron
• nucleus 

What is the mass number?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

How many neutrons does the isotope of lithium have?

• 8
• 3
• 4
• 5

Tags

NGSS.HS-PS1-8

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

How many protons does Carbon have?

• 3

• 4

• 5

• 6

Tags

NGSS.MS-PS1-1

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

• 14
• 7
• 15
• 18

Tags

NGSS.HS-PS1-1

the central region of an atom where its neutrons and protons are is its 

• nucleus 
• electron cloud
• core 
• center 

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NGSS.HS-PS1-8

What are valence electrons?

• extra electrons that do not fit in the nucleus

• electrons found in the outside energy level

• all electrons found in the atom

• electrons that did not become protons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons are in Silicon?

• 5

• 4

• 14

• 8

Tags

NGSS.HS-PS1-1