Chemistry 102: Polyatomic Ion Charge practice

what are polyatomic ions?

Polyatomic ions are ions that consist of two or more atoms covalently bonded together, which collectively have a net charge. Examples include sulfate \text{(SO}4^{2-}) and ammonium \text{(NH}4^{+}).

what is the charge of polyatomic ion NH4?

The ammonium ion, $NH_4^+$, carries a positive one charge.

what is the charge of polyatomic ion NO3?

The nitrate ion, $NO\text{ }_3^{-}$, carries a negative one charge.

what is the charge of CO3?

The carbonate ion, $CO\text{ }_3^{2-}$, carries a negative two charge.

what is the charge of PO4?

The phosphate ion, $PO\text{ }\text{ }_4^{3-}$, carries a negative three charge.