Is it true that some ions contain more than one atom?

Question

Is it true that some ions contain more than one atom?

Answer 1

Yes, it is true. For example, the sulfate (SO4)-2 and the

nitrate (NO3)-1 contain more than one atom.

The ammonium (NH4)+1 ion is an example of a nonmetallic

cation.  An ion is an atom or group of atoms whose number

of electrons is not equal to its number of protons.  Thus an

ion has a net electrical charge.

Hope this helps.

Answer 2

Sure. Sulfate ion and nitrate ion, SO4^2- and NO3-, are called polyatomic ions.