ion
//ˈaɪ.ən//
Noun
ionSingular
ionsPlural
1
An atom or molecule that has gained or lost one or more electrons, giving it a positive or negative electrical charge.
When salt dissolves in water, it separates into positive and negative ions.

An atom or molecule that has gained or lost one or more electrons, giving it a positive or negative electrical charge.
When salt dissolves in water, it separates into positive and negative ions.