Question

c) What are polyatomic ions? Give example .
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Answer 1

Answer:

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. (The prefix poly- carries the meaning "many" in Greek, but even ions of two atoms are commonly described as polyatomic.)

Explanation:

EXP.- , nitrate ion, NO3-, contains one nitrogen atom and three oxygen atoms. The atoms in a polyatomic ion are usually covalently bonded to one another, and therefore stay together as a single, charged unit.