Hydroxide ion
OH (-1)
Nitrate ion
NO3 (-1)
Nitrite ion
NO2 (-1)
Hypochlorite ion
CLO (-1)
Chlorite ion
CLO2 (-1)
Carbonate ion
CO3 (-2)
Phosphite ion
PO3 (-3)
Chromate ion
CrO4 (-2)
Cyanide ion
CN (-1)
Acetate ion
C2H3O2 (-1)
Ammonium ion
NH4 (+1)
Sulfate ion
SO4 (-2)
Chlorate ion
CLO3 (-1)
Perchlorate ion
CLO4 (-1)
Bicarbonate ion
HCO3 (-1)
Phosphate ion
PO4 (-3)
Permanganate ion
MnO4 (-1)
Thiocyanate ion
SCN (-1)
Sulfite ion
SO3 (-2)