Common Polyatomic Ions

A complete list of common polyatomic ion names and their chemical formulas based on the lecture notes.

acetate

$$C_2H_3O_2^-$$

ammonium

$$NH_4^+$$

arsenate

$$AsO_4^{3-}$$

arsenite

$$AsO_3^{3-}$$

azide

$$N_3^-$$

benzoate

$$C_7H_5O_2^-$$

borate

$$BO_3^{3-}$$

bromate

$$BrO_3^-$$

carbonate

$$CO_3^{2-}$$

chlorate

$$ClO_3^-$$

chlorite

$$ClO_2^-$$

chromate

$$CrO_4^{2-}$$

cyanide

$$CN^-$$

dichromate

$$Cr_2O_7^{2-}$$

dihydrogen phosphate

$$H_2PO_4^-$$

dihydrogen phosphite

$$H_2PO_2^-$$

hydrogen carbonate

$$HCO_3^-$$

hydrogen phosphate

$$HPO_4^{2-}$$

hydrogen phosphite

$$HPO_3^{2-}$$

hydrogen sulfate

$$HSO_4^-$$

hydrogen sulfide

$$HS^-$$

hydrogen sulfite

$$HSO_3^-$$

hydroxide

$$OH^-$$

hypochlorite

$$ClO^-$$

iodate

$$IO_3^-$$

manganate

$$MnO_4^{2-}$$

nitrate

$$NO_3^-$$

nitrite

$$NO_2^-$$

oxalate

$$C_2O_4^{2-}$$

perchlorate

$$ClO^-$$

permanganate

$$MnO_4^-$$

peroxide

$$O_2^{2-}$$

phosphate

$$PO_4^{3-}$$

phosphite

$$PO_3^{3-}$$

silicate

$$SiO_3^{2-}$$

sulfate

$$SO_4^{2-}$$

sulfite

$$SO_3^{2-}$$

tartrate

$$C_4H_4O_6^{2-}$$

thiocyanate

$$SCN^-$$

thiosulfate

$$S_2O_3^{2-}$$