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Polyatomic Ions
Common polyatomic ions (8)
| Name of Ion | Formula (and Charge) |
|---|---|
| Ammonium | NH4 + |
| Hydroxide | OH - |
| Nitrate | NO3 - |
| Nitrite | NO2 - |
| Sulfate | SO4 -2 |
| Carbonate | CO3 -2 |
| Acetate | C2H3O2 - |
| Phosphate | PO4 -3 |