key term - Electron

Definition

An electron is a subatomic particle that carries a negative charge and orbits around the nucleus of an atom.

Related terms

Proton:

A subatomic particle with a positive charge found in the nucleus of an atom.

Atomic Number: The number of protons in an atom's nucleus, which determines its identity on the periodic table.

Valence Electrons: The electrons in the outermost energy level of an atom that are involved in chemical bonding.