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Polyatomic Ions

HS Sophomore Honors Chemistry Polyatomic Ions

Polyatomic Ion NamePolyatomic Ion Formula
Nitrate NO3-
Nitrite NO2-
Thiocyanate SCN-
Hydroxide OH-
Cyanide CN-
Acetate (ethanoate) C2H3O2-
Permanganate MnO4-
Perchlorate ClO4-
Chlorate ClO3-
Chlorite ClO2-
Hypochlorite ClO-
Perbromate BrO4-
Bromate BrO3-
Bromite BrO2-
Hypobromite BrO-
Periodate IO4-
Iodate IO3-
Iodite IO2-
Hypoiodite IO-
Sulfate SO4-2
Sulfite SO3-2
Hydrogen Sulfate/Bisulfate HSO4-
Hydrogen Sulfite HSO3-
Carbonate CO3-2
Silicate SiO3-2
Hydrogen Carbonate (Bicarbonate) HCO3-1
Thiosulfate S2O3-2
Chromate CrO4-2
Dichromate Cr2O7-2
Oxalate C2O4-2
Peroxide O2-2
Silicate SiO3-2
Phosphate PO4-3
Phosphite PO3-3
Arsenate AsO4-3
Arsenite AsO3-3
Hydrogen Phosphate HPO4-2
Dihydrogen Phosphate H2PO4-
Ammonium NH4+
Mercury (I) Hg2+2
Created by: xox.saras.xox
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