8.5AB Review

What is the center of an atom called?

• electron cloud

• nucleus

• valence electron

• middle

What two subatomic particles are found in the nucleus of an atom?

• protons

• neutrons

• electrons

What are the rings that house electrons called?

• protons shell

• neutron shell

• electron shell

What are the electrons on the outermost electron shell called?

• protons

• valence electrons

• electrons

• neutrons

What 2 subatomic particle have a mass of 1 AMU?

• protons

• neutrons

• electrons

What subatomic particle has NO Mass (0 AMU)

• proton

• neutron

• electron

Because protons and neutrons are the only subatomic particles with mass, all of the mass in the atom is located in the

• nucleus

• electron shell

What two subatomic particles would you add together to calculate the mass of an atom?

• neutrons + electrons

• protons + neutrons

Protons are

• +

• -

• 0

Neutrons are

• +

• -

• 0