Common Polyatomic Ions

Vocabulary flashcards for common polyatomic ions, including their names, formulas, and charges.

Acetate

A polyatomic ion with a -1 charge and formula $C_2H_3O_2^{-1}$.

Hydrogen carbonate (bicarbonate)

A polyatomic ion with a -1 charge and formula $HCO_3^{-1}$.

Nitrite

A polyatomic ion with a -1 charge and formula $NO_2^{-1}$.

Nitrate

A polyatomic ion with a -1 charge and formula $NO_3^{-1}$.

Cyanide

A polyatomic ion with a -1 charge and formula $CN^{-1}$.

Hydroxide

A polyatomic ion with a -1 charge and formula $OH^{-1}$.

Permanganate

A polyatomic ion with a -1 charge and formula $MnO_4^{-1}$.

Hypochlorite

A polyatomic ion with a -1 charge and formula $ClO^{-1}$.

Chlorite

A polyatomic ion with a -1 charge and formula $ClO_2^{-1}$.

Chlorate

A polyatomic ion with a -1 charge and formula $ClO_3^{-1}$.

Perchlorate

A polyatomic ion with a -1 charge and formula $ClO_4^{-1}$.

Sulfite

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

Sulfate

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

Carbonate

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

Oxalate

A polyatomic ion with a -2 charge and formula $C_2O_4^{-2}$.

Chromate

A polyatomic ion with a -2 charge and formula $CrO_4^{-2}$.

Dichromate

A polyatomic ion with a -2 charge and formula $Cr_2O_7^{-2}$.

Phosphite

A polyatomic ion with a -3 charge and formula $PO_3^{-3}$.

Phosphate

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

Ammonium

A polyatomic ion with a +1 charge.