Atomic Structure:
Sub-Atomic Particles

Neutrons, Protons, and Electrons are sub-atomic particles of an atoms. Protons and neutrons are found inside the nucleus of an atom. The electron circles around the atoms in what is called shells.

Protons have a positive charge of +1, neutrons are neutral and electrons have a negative charge of -1. Therefore the proton number and the electron number is equal. Eg. Nitrogen's proton number is seven. Thus the electron number is 7 as well.

Symbols=
Proton-> p
Electron-> e
Neutron-> n
Proton & Nucleon number-> Z