Polyatomic Ions

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Chemistry

Molecular & Ionic Compounds

Last updated 6:14 PM on 10/15/26
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25 Terms

1
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NH_4_^+^

ammonium

2
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OH^-^

hydroxide

3
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CN^-^

cyanide

4
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Acetate

C2H3O2^- or CH3COO^-

5
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Sulfite

SO_3_²-

6
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sulfate

SO_4^2-

7
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Hydrogen sulfate

HSO_4^-

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S_2_O_3_²-

thiosulfate

9
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phosphate

PO_4_^3-

10
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Hydrogen phosphate

HPO_4^{2-}

11
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dihydrogen phosphate

H_2PO_4^−

12
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thiocyanate

SCN^−

13
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cyanate

OCN^−

14
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nitrite

NO_2^−

15
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Nitrate

NO_3_^-

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Hypochlorite

ClO^−

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Chlorite

ClO_2^−

18
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Chlorate

ClO_3^-

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Perchlorate

ClO_4^-

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CO_3²-

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hydrogen carbonate

HCO_3_^-

22
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oxalate

C_2O_4²-

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Dichromate

Cr_2O_7^{2-}

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Cromate

CrO_4²-

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Permanganate

MnO_4¹-