Atomic Structure Review

What are the three main subatomic particles that make up an atom?

• Protons, neutrons, and electrons

• Nucleus, protons, and electrons

• Quarks, leptons, and bosons

• Atoms, molecules, and compounds

Which statement accurately describes the charges of subatomic particles?

• Protons are positive, neutrons are negative, electrons are neutral

• Protons are positive, neutrons are neutral, electrons are negative

• Protons are negative, neutrons are positive, electrons are neutral

• Protons are neutral, neutrons are positive, electrons are negative

How does the mass of an electron compare to the mass of a proton or neutron?

• An electron has a much greater mass than a proton or neutron

• An electron has a slightly greater mass than a proton or neutron

• An electron has a much smaller mass than a proton or neutron

• An electron has roughly the same mass as a proton or neutron

If an atom's nucleus were the size of a grape, how far away would its electrons be?

• A few inches

• A few feet

• Almost a mile

• Right next to the nucleus