Common Polyatomic And Multiple Metal Ions Charge Chart Page 2
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1
2Common Polyatomic Ions
-1 Charge
-2 Charge
Formula
Name
Formula
Name
-
-
-2
C
H
O
Acetate (CH
COO
may also be used)
SO
Sulfite
2
3
2
3
3
-
-2
HCO
Hydrogen carbonate (bicarbonate)
SO
Sulfate
3
4
-
-2
NO
Nitrite
CO
Carbonate
2
3
-
NO
Nitrate
3
-
OH
Hydroxide
-3 Charge
+1 Charge
Formula
Name
Formula
Name
-3
+
PO
Phosphite
NH
Ammonium
3
4
-3
PO
Phosphate
4
Additional Polyatomic Ions
-1 Charge
-2 Charge
Formula
Name
Formula
Name
-
-2
H
PO
Dihydrogen Phosphate
HPO
Hydrogen Phosphate
2
4
4
-
-2
HSO
Hydrogen sulfite (bisulfite)
C
O
Oxalate
3
2
4
-
-2
HSO
Hydrogen sulfate (bisulfate)
S
O
Thiosulfate
4
2
3
-
-2
CN
Cyanide
CrO
Chromate
4
-
-2
CNO
Cyanate
Cr
O
Dichromate
2
7
-
-2
SCN
Thiocyanate
O
Peroxide
2
-
-2
MnO
Permanganate
SiO
Silicate
4
3
-
ClO
Hypochlorite
-
ClO
Chlorite
Br and I may be
2
-
ClO
Chlorate
substituted for Cl
3
-
ClO
Perchlorate
4
-3 Charge
Formula
Name
-3
AsO
Arsenite
3
-3
AsO
Arsenate
4
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