Question

What are polyatomic ions? Give examples.​

Answer 1

Explanation:

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.

Eg: SO4²‐, CO3²-

.

Answer 2

DEFINITION

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.)

EXAMPLES

Acetate – C2H3O2–

Bicarbonate (or hydrogen carbonate) – HCO3–

Bisulfate (or hydrogen sulfate) – HSO4–

Hypochlorite – ClO–