Question

what is mean by polyatomic ion(with example) ​

Answer 1

Explanation:

Definition of Polyatomic Ions

Polyatomic ions are covalently bonded groups of atoms and having a positive or negative charge caused by the formation of an ionic bond with another ion. Compounds formed from such a combination of ions are polyatomic ionic compounds.

But the polyatomic ion will behave as a single unit. In addition, polyatomic ions and those ionic compounds take part in chemical reactions such as acid-base, precipitation, and displacement similar to monatomic metallic ions.

They easily dissolve in water and conduct electricity and dissociate in a solution similar to other ions. Whereas they behave externally like monatomic ions, but their internal structure is more complicated. This is because there are two or more atoms present in the polyatomic ion.

For example:

NH4+   :: Ammonium ,            CO32−  :: Carbonate

NO2−   :: Nitrite                       HCO3− :: Hydrogen carbonate

NO3−   :: Nitrate                      ClO−    :: Hypochlorite

Answer 2

Answer: Polyatomic ions are ions which have of more than one atom.Polyatomic ion, also known as a molecular ion, is a covalently bonded set of two or more atoms.

E.g. SO₄²⁻ (sulfate), NO₃⁻ (nitrate).

Explanation: