Give one example of a polyatomic element and polyatomic ion.

• A polyatomic element is a chemical element that exists as a compound molecule containing more than three atoms of the same element.
• An example of a polyatomic element is -${\mathrm{S}}_8$
• Polyatomic ions are ions that contain more than one atom. these are created when a number of atoms come together to form a group by covalent bonds.
• An example of a polyatomic ion is -${{\mathrm{NO}}_3}^{-}$.