polyatomic ion

(redirected from Polyatomic cation)

polyatomic ion

[‚päl·ē·ə¦täm·ik ′ī·ən]
(chemistry)
An electrically charged species formed by covalent bonding of atoms of two or more different elements, usually nonmetals, for example, the ammonium ion (NH4+).
References in periodicals archive ?
Subsequent work has shown that many other polyatomic cations of S, Se and Te can be obtained in superacids.