Protons, Neutrons, and Electrons

What is the charge of a proton?

• -1

• 0

• +1

What is the charge of an electron?

• +1

• -1

• 0

What is the charge of a neutron?

• -1

• +1

• 0

Ions are when protons and _____ aren't equal.

• electrons

• neutrons

Isotopes have different numbers of _____.

• protons

• electrons

• neutrons

How many protons does Copper have?

• 27

• 29

• 13

• 50

Phosphorous has 15 protons with a charge of -3. How many electrons does phosphorous have?

• 15

• 12

• 18

Selenium has an atomic mass of 79. How many neutrons does selenium have?

• 63

• 79

• 34

• 45

Rubidium has 36 electrons. What would be the charge of rubidium be?

• 0

• +1

• -1

• +3

How many protons, neutrons, and electrons are in a silver atom with a mass number of 108 and a charge of +2?

• 47 protons, 47 neutrons, 61 electrons

• 47 protons, 61 neutrons, 47 electrons

• 47 protons, 61 neutrons, 45 electrons

• 47 protons, 108 neutrons, 47 electrons