+1
ammonium, NH₄⁺

-1
acetate, C₂H₃O₂^-, or CH₃COO ^-
bromate, BrO₃^-
chlorate, ClO₃^-
chlorite, ClO₂^-
cyanide, CN^-
hydrogen carbonate, HCO₃^- (also called bicarbonate)
hydroxide, OH^-
hypochlorite, ClO^-
iodate, IO₃^-
nitrate, NO₃^-
nitrite, NO₂^-
permanganate, MnO₄^-
perchlorate, ClO₄^-
thiocyanate, SCN ^-

-2
carbonate, CO₃ ^-2
chromate, CrO₄ ^-2
dichromate, Cr₂O₇ ^-2
oxalate, C₂O₄ ^-2
peroxide, O₂ ^-2
sulfate, SO₄ ^-2
sulfite, SO₃ ^-2

-3
phosphate, PO₄ ^-3
phosphite, PO₃ ^-3
arsenate, AsO₄ ^-3