CVHS: Atomic Structure

What is the charge of a proton?

• +1

• -1

• 0

• +2

Tags

NGSS.HS-PS1-8

How do you determine the number of protons in an atom?

• same as mass number

• same as atomic number

• mass number minus atomic number

• mass number plus atomic number

Which subatomic particle has a negative charge?

• proton

• neutron

• electron

• atom

How do you determine how many neutrons are in an atom?

• same as mass number

• same as atomic number

• mass number minus atomic number

• mass number plus atomic number

Which is the correct symbol for the atom with 42 protons and 49 neutrons?

• $_{42}^{49}In$

• $_{42}^{91}In$

• $_{42}^{91}Mo$

• $_{49}^{91}Mo$

Which is the number of protons in

 $_{26}^{56}Fe$  ?

• 82

• 26

• 30

• 56

• 35

• 80

• 115

• 45

How many electrons are in an atom of sodium?

• 22

• 23

• 11

• 12

Tags

NGSS.HS-PS1-1

Positive subatomic particles are called

Negative subatomic particles are called