Polyatomic Ion Names and Formulas

A complete set of vocabulary flashcards covering the chemical formulas and corresponding names of 25 common polyatomic ions.

$C_2H_3O_2^-$ or $CH_3CO_2^-$

acetate

$$ClO^-$$

hypochlorite

$$ClO_2^-$$

chlorite

$$ClO_3^-$$

chlorate

$$ClO_4^-$$

perchlorate

$$CN^-$$

cyanide

$$HCO_3^-$$

bicarbonate or hydrogen carbonate

$$HSO_4^-$$

hydrogen sulfate

$$OH^-$$

hydroxide

$$NO_3^-$$

nitrate

$$NO_2^-$$

nitrite

$$MnO_4^-$$

permanganate

$$CO_3^{2-}$$

carbonate

$$CrO_4^{2-}$$

chromate

$$Cr_2O_7^{2-}$$

dichromate

$$C_2O_4^{2-}$$

oxalate

$$SO_4^{2-}$$

sulfate

$$SO_3^{2-}$$

sulfite

$$NH_4^+$$

ammonium

$$SCN^-$$

thiocyanate

$$HPO_4^{2-}$$

hydrogen phosphate

$$H_2PO_4^-$$

dihydrogen phosphate

$$O_2^{2-}$$

peroxide

$$PO_3^{3-}$$

phosphite

$$PO_4^{3-}$$

phosphate