Question

which of the following does the atomic number of an atom represent? (1 point) the number of particles outside the nucleus of the atom the number of particles in the nucleus of the atom the number of neutrons in the atom the number of protons in the atom

Explanation:

The atomic number of an atom is defined as the number of protons in the nucleus of that atom. Electrons (particles outside the nucleus) in a neutral atom equal the number of protons, but the atomic number specifically refers to protons. The number of particles in the nucleus is protons + neutrons (mass - number related). Neutrons are not what the atomic number represents.

Answer:

the number of protons in the atom