Counting Protons Electrons Neutrons

How many protons are in a neutral atom of Sodium-23?

• 11

• 22

• 12

• 33

Tags

NGSS.MS-PS1-1

How many electrons are in a neutral atom of Aluminum-28?

• 40

• 27

• 13

• 14

Tags

NGSS.MS-PS1-1

How many neutrons are in a neutral atom of Magnesium-26?

• 36

• 12

• 24

• 14

Tags

NGSS.MS-PS1-1

How many neutrons are in a neutral atom of Phosphorus-30?

• 16

• 15

• 31

• 46

Tags

NGSS.MS-PS1-1

How many electrons are in a neutral atom of Sulfur-34?

• 32

• 16

• 48

• 18

Tags

NGSS.MS-PS1-1

How many protons are in a neutral atom of Chlorine-36?

• 35

• 18

• 17

• 52

Tags

NGSS.MS-PS1-1

How many neutrons are in a neutral atom of Argon-41?

• 18

• 41

• 58

• 23

Tags

NGSS.MS-PS1-1

How many electrons are in a neutral atom of Potassium-39?

• 19

• 20

• 58

• 39

Tags

NGSS.MS-PS1-1

How many protons, neutrons, and electrons are in Oxygen-16?

• Protons = 8; Neutrons = 16; Electrons = 8

• Protons = 8; Neutrons = 8; Electrons = 8

• Protons = 16; Neutrons = 8; Electrons = 16

• Protons = 16; Neutrons = 24; Electrons = 16

Tags

NGSS.MS-PS1-1

If Arsenic has 43 neutrons, what is its mass number?

• 33

• 79

• 75

• 76

Tags

NGSS.MS-PS1-1