Polyatomic Ions Nomenclature and Formulas

Vocabulary flashcards mapping common polyatomic ion names to their exact chemical formulas and ionic charges.

Ammonium

Polyatomic cation with the chemical formula $NH_4^+$

Hydroxide

Polyatomic anion with the chemical formula $OH^-$

Peroxide

Polyatomic anion with the chemical formula $O_2^{2-}$

Cyanide

Polyatomic anion with the chemical formula $CN^-$

Thiocyanate

Polyatomic anion with the chemical formula $SCN^-$

Nitrite

Polyatomic anion with the chemical formula $NO_2^-$

Nitrate

Polyatomic anion with the chemical formula $NO_3^-$

Carbonate

Polyatomic anion with the chemical formula $CO_3^{2-}$

Bicarbonate

Polyatomic anion with the chemical formula $HCO_3^-$

Sulfite

Polyatomic anion with the chemical formula $SO_3^{2-}$

Sulfate

Polyatomic anion with the chemical formula $SO_4^{2-}$

Bisulfate

Polyatomic anion with the chemical formula $HSO_4^-$

Phosphate

Polyatomic anion with the chemical formula $PO_4^{3-}$

Hydrogen phosphate

Polyatomic anion with the chemical formula $HPO_4^{2-}$

Dihydrogen phosphate

Polyatomic anion with the chemical formula $H_2PO_4^-$

Hypochlorite

Polyatomic anion with the chemical formula $ClO^-$

Chlorite

Polyatomic anion with the chemical formula $ClO_2^-$

Chlorate

Polyatomic anion with the chemical formula $ClO_3^-$

Perchlorate

Polyatomic anion with the chemical formula $ClO_4^-$

Permanganate

Polyatomic anion with the chemical formula $MnO_4^-$

Chromate

Polyatomic anion with the chemical formula $CrO_4^{2-}$

Dichromate

Polyatomic anion with the chemical formula $Cr_2O_7^{2-}$

Oxalate

Polyatomic anion with the chemical formula $C_2O_4^{2-}$

Acetate

Polyatomic anion with the chemical formula $CH_3CO_2^-$