Question

An atomic nucleus is composed of A) protons. B) protons and neutrons. C) protons and electrons. D) protons, neutrons, and electrons.

Answer 1

B

Step-by-step explanation:

Protons have a positive charge, while neutrons have a no charge (neutral). There two components make up the nucleus. While electrons go around the nucleus creating an electron cloud.

Answer 2

B) protons and neutrons.

Step-by-step explanation:

The protons and neutrons are located in the nucleus of the atom and represent most of the 'mass' of the atom, that's their count that determine the 'mass' of an atom (like 12 for Carbon).

The electrons rotate around the nucleus and have a negligible mass.