Question

what is polyatomicions

Answer 1

A polyatomic ion, also known as a molecular ion, is a charged chemical species (ion) composed of two or more atoms covalently bonded or of a metal complex that can be considered to be acting as a single unit. The prefix poly- means "many," in Greek, but even ions of two atoms are commonly referred to as polyatomic.

Answer 2

poly atomic ions is group of atoms which carrying charges (positive or negative )
for ex.hydroxide (OH down is 2 ,up will be negative ,down will be positive