Atoms Vocab (Science 7)

What is the smallest unit of matter?

• Proton

• Neutron

• Atom

• Electron

Which subatomic particle has a positive (+) charge?

• Electron

• Neutron

• Proton

• Atom

Which subatomic particle has no charge (neutral)?

• Proton

• Neutron

• Electron

• Atom

Which subatomic particle has a negative (-) charge?

• Proton

• Neutron

• Electron

• Atom

What does atomic mass consist of?

• Protons only

• Neutrons only

• Protons and electrons

• Protons and neutrons

What determines the type of atom?

• Number of neutrons

• Number of electrons

• Number of protons

• Atomic mass

What is the center of the atom that contains protons and neutrons called?

• Electron cloud

• Nucleus

• Atomic number

• Atomic mass