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Polyatomic Ions
| Term | Definition |
|---|---|
| Ammonium | NH₄⁺ |
| Acetate | C₂H₃O₂⁻ |
| Bromate | BrO₃⁻ |
| Chlorate | ClO₃⁻ |
| Cholrite | ClO₂ |
| Hypochlorite | ClO⁻ |
| Perchlorate | ClO₄⁻ |
| Cyanide | CN⁻ |
| Iodate | IO₃⁻ |
| Hydroxide | OH⁻ |
| Nitrate | NO₃⁻ |
| Nitrite | NO₂⁻ |
| Dihydrogen phosphate | H₂PO₄⁻ |
| Hydrogen Carbonate (Bicarbonate) | HCO₃⁻ |
| Sulfite | SO₃²⁻ |
| Sulfate | SO₄²⁻ |
| Hydrogen Sulfate (Bisulfate) | NaHSO₄ |
| Thiosulfate | S₂O₃²⁻ |
| Oxalate | C₂O₄²⁻ |
| Phosphite | PO₃³⁻ |
| Phosphate | PO₄³⁻ |
| Hydrogen Phosphate | HPO₄²⁻ |
| Carbonate | CO₃² ⁻ |
| Chromate | CrO₄²⁻ |
| Dichromate | Cr₂O₇²⁻ |
| Permanganate | MnO₄⁻ |
| Peroxide | O₂²⁻ |
| Cyanate | OCN⁻ |
| Thiocyanate | SCN⁻ |