POLYATOMIC IONS

(NH4)+

Ammonium

(NO3)-

Nitrate

(NO2)-

Nitrite

(CrO4) 2-

Chromate

(Cr2O7) 2-

Dichromate

(CN)-

Cyanide

(MnO4) -

Permanganate

(OH)-

Hydroxide

(O2) 2-

Peroxide

(NH2) -

Amide

(CO3) 2-

Carbonate

(SO4) 2-

Sulfate

(SO3) 2-

Sulfite

(C2O4) 2-

Oxalate

(PO4) 3-

Phosphate

(PO3) 3-

Phosphite

(S2O3) 2-

Thiosulfate

(AsO4) 3-

Arsenate

(SeO4) 3-

Selenate

(SiO3) 2-

Silicate

(C4H4O6) 2-

Tartrate

(ClO4) -

Perchlorate

(C2H3O2) -

Acetate

(ClO3) -

Chlorate

(ClO2) -

Chlorite

(ClO) -

Hypochlorite

(IO4) -

Periodate

(IO3) -

Iodate

(IO) -

Hypoiodite

(BrO3) -

Bromate

(BrO) -

Hypobromite

(HCO3) -

Hydrogen Carbonate (Bicarbonate)

(HSO4) -

Hydrogen Sulfate (Bisulfate)

(HSO3) -

Hydrogen Sulfite (Bisulfite)

(HC2O4) -

Hydrogen Oxalate (Binoxalate)

(HPO4) 2-

Hydrogen Phosphate

(H2PO4) -

Dihydrogen Phosphate

(HS) -

Hydrogen sulfide

(BO3) 3-

Borate

(B4O7) 2-

Tetraborate

(SiF6) 2-

Hexafluorosilicate

(SCN) -

Thiocyanate