cation

Types:

hydrogen ion

a positively charged atom of hydrogen; that is to say, a normal hydrogen atomic nucleus

diazonium

the univalent cation R-N:N- (where R is an aromatic hydrocarbon); found in salts that are used in manufacturing azo dyes

Type of:

ion

a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons