Question

What determines the atomic number of an atom? (Medal & Fan) PLEASE HELP!

A.the number of neutrons in two atoms of an element

B.the number of electrons in the outer layer of any atom

C.the number of protons in every atom of an element

D.the number of protons plus the number of neutrons in an atom

Answer 1

The total positive charge. The positive charge is determined by the amount of protons the atom has.
Atomic number=number of protons.
Atomic mass=number of protons + the number of neutrons.