Common Polyatomic Ions

A complete set of vocabulary flashcards mapping common polyatomic ion names to their chemical formulas and charges as presented in the lecture notes.

ammonium

$$NH_4^+$$

hydroxide

$$OH^-$$

acetate

$CH_3COO^-$ or $C_2H_3O_2^-$

periodate

$$IO_4^-$$

perbromate

$$BrO_4^-$$

iodate

$$IO_3^-$$

bromate

$$BrO_3^-$$

iodite

$$IO_2^-$$

bromite

$$BrO_2^-$$

hypoiodite

$$IO^-$$

hypobromite

$$BrO^-$$

nitrate

$$NO_3^-$$

carbonate

$$CO_3^{2-}$$

nitrite

$$NO_2^-$$

hydrogen carbonate or bicarbonate

$$HCO_3^-$$

oxalate

$$C_2O_4^{2-}$$

perchlorate

$$ClO_4^-$$

permanganate

$$MnO_4^-$$

chlorate

$$ClO_3^-$$

peroxide

$$O_2^{2-}$$

chlorite

$$ClO_2^-$$

hydrogen phosphate

$$HPO_4^{2-}$$

hypochlorite

$$ClO^-$$

dihydrogen phosphate

$$H_2PO_4^-$$

chromate

$$CrO_4^{2-}$$

phosphate

$$PO_4^{3-}$$

dichromate

$$Cr_2O_7^{2-}$$

phosphite

$$PO_3^{3-}$$

cyanide

$$CN^-$$

sulfite

$$SO_3^{2-}$$

hydrogen sulfate or bisulfate

$$HSO_4^-$$

silicate

$$SiO_4^{4-}$$

sulfate

$$SO_4^{2-}$$

thiocyanate

$$SCN^-$$