hydroxide
OH 1-
cyanide
CN 1-
sulfate
(SO4) 2-
phosphate
(PO4) 3-
nitrate
(NO3) 1-
carbonate
(CO3) 2-
bicarbonate
(HCO3) 1-
peroxide
(O2) 2-
permanganate
(MnO4) 1-
ammonium
(NH4) 1+
perchlorate
(ClO4) 1-
chlorate
(ClO3) 1-
chlorite
(ClO2) 1-
hypochlorite
(ClO) 1-