Quiz: Subatomic Particles

1. Ions are
a. atoms of an element that have different numbers of protons
b. atoms of an element that have different numbers of neutrons
c. atoms that have a charge
2. What particles are found in the nucleus of an atom?
a. protons and neutrons
b. protons and electrons
c. neutrons and electrons
3. Which subatomic particle has the smallest mass?
a. proton
b. neutron
c. electron
4. Which subatomic particle has a charge of zero?
a. proton
b. neutron
c. electron
5. Which subatomic particle has a charge of +1?
a. proton
b. neutron
c. electron
6. Which section of an atom has the highest density?
a. electron cloud
b. nucleus
c. all sections have the same density
7. Which section of an atom has the lowest density?
a. electron cloud
b. nucleus
c. all sections have the same density
8. The atomic number tells the
a. number of electrons in the atom
b. number of protons in the atom
c. number of neutrons in the atom
9. The number of protons and neutrons in a nucleus is the
a. atomic mass
b. atomic number
c. mass number
10. All atoms of zinc have
a. 30 protons
b. 66 neutrons
c. 65 protons
11. Nucleons are
a. electrons and protons
b. electrons and neutrons
c. protons and neutrons
12. Which subatomic particle has a charge of –1?
a. proton
b. neutron
c. electron
13. Where are the electrons in an atom located?
a. nucleus
b. atomic orbitals
c. corona of the nucleus

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