Question

What is a polyatomic ion? What is an example?

Answer 1

`NO_3^-`, `SO_4^(2-)`, `HPO_4^(2-)`, `Cr_2O_7^(2-)....`

Explanation:

...`O_2^(2-)`, `ClO_4^(-)`, `ClO_3^-`, `MnO_4^(-)`, `I_3^-`....all of these species are polyatomic ions that can form salts with counterions.....