Polyatomic Ions

acetateC2H3O2^(ー)
hypochloriteClO^(ー)
chloriteClO2^(ー)
chlorateClO3^(ー)
perchlorateClO4^(ー)
cyanideCN^(ー)
bicarbonateHCO3^(ー)
hydroxideOH^(ー)
nitriteNO2^(ー)
nitrateNO3^(ー)
permanganateMnO4^(ー)
carbonateCO3^(2ー)
sulfiteSO3^(2ー)
sulfateSO4^(2ー)
phosphitePO3^(3ー)
phosphatePO4^(3ー)
ammoniumNH4^(+)