Fall ACP Review 8th

What 2 subatomic particles are in the nucleus?

• protons & electrons
• electrons & neutrons
• protons & neutrons
• electrons & neutrinos

What is the charge of a proton?

• positive
• negative
• neutral

What is the charge of an electron?

• positive
• negative
• neutral

What is an atom?

• giant object
• building block of matter
• molecule
• compound

Where are valence electrons?

• nucleus
• no where
• innermost ring
• outermost ring

What subatomic particle identifies an atom?

• protons
• neutrons
• electrons
• neutrinos

Where is most of the mass of an atom located?

• empty space
• there is no mass
• electron cloud
• nucleus

Where is most of the volume of an atom located?

• empty space
• there is no mass
• electron cloud
• nucleus

What is the charge of a neutron?

• positive
• negative
• neutral

Electrons have a mass of 

• 100 amu
• 10 amu
• 1 amu
• .001 amu