Atoms Ions Isotopes

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

What does the K stand for in the Potassium block?

• Atomic number

• Atomic weight

• Symbol for the atom

What is the mass number?

• 34

• 79

• 45

• 35

What is the mass number of this element

• 11

• 23

• 24

• 1

• 12

Tags

NGSS.MS-PS1-1

What does the atomic number identify?

• The number of neutrons.

• The number of protons.

• The number of protons + neutrons.

• The number of electrons.

How many neutrons are in the following atom?

• 47

• 61

• 108

• 155

Tags

NGSS.MS-PS1-1

How many protons are in the following atom?

• 82

• 125

• 207

• 189

Tags

NGSS.MS-PS1-1

How many neutrons are in the isotope Carbon-14?

• 6

• 8

• 12

• 14

Tags

NGSS.MS-PS1-1

How many electrons does the following ion have?

• 10

• 12

• 14

• 22

Tags

NGSS.MS-PS1-1

How many electrons does the following ion have?

• 3

• 7

• 10

• 14