Atomic Mass

Which subatomic particles make up the mass of an atom?

• protons only

• protons and neutrons

• protons, neutrons and electrons

• protons and electrons

Tags

NGSS.MS-PS1-1

What is the atomic mass of an atom with 32 protons and 31 neutrons?

• 31

• 32

• 62

• 63

Tags

NGSS.MS-PS1-1

How many neutrons are there for an atom with a mass of 20 and 11 protons?

• 9

• 11

• 20

• 31

Tags

NGSS.MS-PS1-1

How many protons are there for an atom with 16 neutrons and atomic mass of 33?

• 16

• 17

• 18

• 33

Tags

NGSS.MS-PS1-1

Element number 22 (atomic number 22) has how many protons?

• 22

• 25

• 47

• 69

Tags

NGSS.MS-PS1-1

What is the atomic mass of element 5 if it has 6 neutrons?

• 5

• 6

• 11

• 30

Tags

NGSS.MS-PS1-1

How many neutrons does element 11 have if it has an atomic mass of 21?

• 10

• 11

• 12

• 32

Tags

NGSS.MS-PS1-1

Which element has an atomic mass of 40 and 21 neutrons?

• potassium

• calcium

• scandium

• zirconium

Tags

NGSS.MS-PS1-1