Common Polyatomic Ions
(AsO4)3-	arsenate
(AsO3)3-	arsenite
(BO3)3-	borate
(B4O7)2-	tetraborate
(BrO)1-	hypobromite
(BrO2)1-	bromite
(BrO3)1-	bromate
(BrO4)1-	perbromate
(CHO2)1-	formate
(C2H3O2)1-	acetate
(C4H4O6)1-	tartrate
(C6H5O7)3-	citrate
(ClO)1-	hypochlorite
(ClO2)1-	chlorite
(ClO3)1-	chlorate
(ClO4)1-	perchlorate
(CN)1-	cyanide
(CO3)2-	carbonate
(C2O4)2-	oxalate
(CrO4)2-	chromate
(Cr2O7)2-	dichromate
(HCO3)1-	bicarbonate
(HC2O4)1-	bioxalate
(H3O)1+	hydronium
(HPO4)2-	biphosphate
(H2PO4)1-	dihydrogen phosphate
(HS)1-	bisulfide
(HSO3)1-	bisulfite
(HSO4)1-	bisulfate
(IO4)1-	periodate
(IO3)1-	iodate
(IO2)1-	iodite
(IO)1-	hypoiodite
(MnO4)1-	permanganate
(N3)1-	azide
(NH2)1-	amide
(NH4)1+	ammonium
(NO2)1-	nitrite
(NO3)1-	nitrate
(O2)2-	peroxide
(OH)1-	hydroxide
(PO3)3-	phosphite
(PO4)3-	phosphate
(SCN)1-	thiocyanate
(SO3)2-	sulfite
(SO4)2-	sulfate
(S2O3)2-	thiosulfate
(SeO4)2-	selenate
(SiF6)2-	hexafluorosilicate
(SiO3)2-	silicate