Atoms and the Periodic Table

The second energy level can hold up to how many electrons?

• 2
• 8
• 10
• 12

Tags

NGSS.MS-PS1-1

What is the atomic mass of "F"

• 9
• 18
• 17
• 19

Tags

NGSS.MS-PS1-1

How do you find out the number of protons in an atom?

• atomic number
• atomic mass
• charge
• atomic mass - atomic number

Tags

NGSS.MS-PS1-1

How do you find out the number of neutrons in an atom?

• atomic number
• atomic mass
• charge
• atomic mass - atomic number

All matter is made of _________. 

• energy 
• atoms 
• electrons 
• compounds 

Tags

NGSS.MS-PS1-1

Which particle has a similar mass to a proton?

• Electron
• Neutron
• Photon
• Marble

The mass of a proton is _______.

• 1 amu

• 1 gram

• has no mass

• undetermined

Answer explanation

Think about what amu was from your vocabulary

The part of the atom that determines the identity of the atom is the ____________.

• proton
• nucleus
• electron
• neutron