Common and Less Common Polyatomic Ions

A vocabulary flashcard deck covering the formulas and charges of common and less common polyatomic ions.

Ammonium

$$NH_4^{+}$$

Hydroxide

$$OH^{-}$$

Acetate

$$C_2H_3O_2^{-}$$

Iodate

$$IO_3^{-}$$

Hypoiodite

$$IO^{-}$$

Bromate

$$BrO_3^{-}$$

Iodite

$$IO_2^{-}$$

Hypobromite

$$BrO^{-}$$

Periodate

$$IO_4^{-}$$

Bromite

$$BrO_2^{-}$$

Perbromate

$$BrO_4^{-}$$

Nitrate

$$NO_3^{-}$$

Nitrite

$$NO_2^{-}$$

Carbonate

$$CO_3^{2-}$$

Bicarbonate (hydrogen carbonate)

$$HCO_3^{-}$$

Permanganate

$$MnO_4^{-}$$

Chlorate

$$ClO_3^{-}$$

Phosphate

$$PO_4^{3-}$$

Hypochlorite

$$ClO^{-}$$

Monohydrogen phosphate

$$HPO_4^{2-}$$

Chlorite

$$ClO_2^{-}$$

Dihydrogen phosphate

$$H_2PO_4^{-}$$

Perchlorate

$$ClO_4^{-}$$

Sulfate

$$SO_4^{2-}$$

Chromate

$$CrO_4^{2-}$$

Sulfite

$$SO_3^{2-}$$

Dichromate

$$Cr_2O_7^{2-}$$

Bisulfate (hydrogen sulfate)

$$HSO_4^{-}$$

Cyanide

$$CN^{-}$$

Mercury (I)

$$Hg_2^{2+}$$

Thiocyanate

$$SCN^{-}$$

Arsenate

$$AsO_4^{3-}$$

Thiosulfate

$$S_2O_3^{2-}$$

Azide

$$N_3^{-}$$

Selenate

$$SeO_4^{2-}$$

Oxalate

$$C_2O_4^{2-}$$

Silicate

$$SiO_4^{4-}$$

Peroxide

$$O_2^{2-}$$