Question

What are polyatomic ions? Give examples?​

Answer 1

an atom or a molecule that has gained or lost one or more of its parts (electrons) and so has a positive or negative electric charge

Polyatomic ion definition: A polyatomic ion is an ion composed of two or more atoms.

Examples: The hydroxide cation (OH-) and the phosphate cation (PO43-) are both polyatomic ions.

Answer 2

Polyatomic atoms are the group of atoms that have a net charge on them.

Hence ions are charged particles .

Example :

1. Sulphate ion --- SO4⁻²

sulphate ion contains atoms of sulphur and oxygen atoms with a net charge of -2

2. Carbonate Ion -- CO3⁻²

Carbonate ion contains atoms of carbon and Oxygen with a net charge of -2