How do you identify the relative mass relaitive charge and location of the three smaller subatomic particle of an atom?

Answer 1

protons --- rel. mass 1 amu, rel. charge +1, location in the nucleus.

neutrons --- rel. mass 1 amu, rel. charge 0, location in the nucleus.

electrons --- rel. mass 0 amu, rel. charge -1, location outside the nucleus.

Answer 2

The three smaller subatomic particles are protons, neutrons, and electrons. Protons and neutrons have a relative mass of approximately 1 Atomic Mass unit (amu) and a relative charge of +1 for protons and 0 for neutrons. Electrons have a very small mass relative to protons and neutrons and a relative charge of -1. Protons and neutrons are located in the nucleus of the atom, while electrons orbit the nucleus in electron shells.