Common Polyatomic Ions: Names, Formulas, and Charges

Vocabulary flashcards covering the chemical formulas and charges of common polyatomic ions.

Ammonium

A polyatomic ion with the formula and charge $NH_4^+$.

Acetate

A polyatomic ion with the formula and charge $CH_3COO^-$.

Carbonate

A polyatomic ion with the formula and charge $CO_3^{2-}$.

Cyanide

A polyatomic ion with the formula and charge $CN^-$.

Hydroxide

A polyatomic ion with the formula and charge $OH^-$.

Permanganate

A polyatomic ion with the formula and charge $MnO_4^-$.

Nitrate

A polyatomic ion with the formula and charge $NO_3^-$.

Nitrite

A polyatomic ion with the formula and charge $NO_2^-$.

Sulfate

A polyatomic ion with the formula and charge $SO_4^{2-}$.

Sulfite

A polyatomic ion with the formula and charge $SO_3^{2-}$.

Perchlorate

A polyatomic ion with the formula and charge $ClO_4^-$.

Phosphate

A polyatomic ion with the formula and charge $PO_4^{3-}$.