TheWorksheets.com

FORMULA WRITING AND NOMENCLATURE OF INORGANIC COMPOUNDS - chymist.com

Frequently, in chemistry, we come across a group of atoms that behave as if it were a single atom when it combines with another atom or group of atoms. Such a group of atoms is called a radical or polyatomic ion. For example, consider the following reaction between silver nitrate and ammonium chloride to form silver chloride and ammonium nitrate: