Question

what is polyatomic ion ??​

Answer 1

Answer:

"Polyatomic ions: Those ions which are formed from groups of joined atoms are called polyatomic ions. Compound ions are also called polyatomic ions. For e.g. Ammonium ion NH4+, is a compound ion which is made up of two types of atoms joined together nitrogen and hydrogen.*

Answer 2

Answer:

A polyatomic ion, also known as a molecular ion, is a covalently bonded set of two or more atoms, or of a metal complex, that can be considered to behave as a single unit and that has a net charge that is not zero. Unlike a molecule, which has a net charge of zero, this chemical species is an ion.