What atomic particles occupy the nucleus of an atom?
Why protons and neutrons.
The nucleus is composed of protons, massive, positively charged, nuclear particles, and neutrons, massive neutrally charged nuclear particles. The number of protons,
Different numbers of neutrons gives rise to the existence of isotopes: i.e.
Nuclear protons and neutrons engage in the strong nuclear force, a potent short range force that over-rides electrostatic repulsion, and binds the nucleus together.