Anions

Definition

Anions are negatively charged ions that are formed when an atom gains one or more electrons.

Related terms

Proton:

A subatomic particle found in the nucleus of every atom, carrying a positive electric charge equal in magnitude to that of an electron, but of opposite sign.

Neutron: A subatomic particle with no net electric charge, found within atomic nuclei.

Ionic Bonding:

The complete transfer of valence electron(s) between atoms generating two oppositely charged ions.