1: The atomic number of an atom is equivalent to which of the following?
Athe number of protons plus the number of neutrons in the nucleus
Bthe number of electrons outside the nucleus
Cthe number of protons in the nucleus
Dthe number of neutrons in the nucleus
Athe number of protons plus the number of neutrons in the nucleus
Bthe number of electrons outside the nucleus
Cthe number of protons in the nucleus
Dthe number of neutrons in the nucleus