| Name | Formula | Charge |
|---|---|---|
| Ammonium | NH4+ | +1 |
| Hydronium | H3O+ | +1 |
| Hydroxide | OH- | -1 |
| Nitrate | NO3- | -1 |
| Nitrite | NO2- | -1 |
| Hydrogen carbonate (bicarbonate) | HCO3- | -1 |
| Acetate | CH3COO- | -1 |
| Cyanide | CN- | -1 |
| Permanganate | MnO4- | -1 |
| Hypochlorite | ClO- | -1 |
| Chlorite | ClO2- | -1 |
| Chlorate | ClO3- | -1 |
| Perchlorate | ClO4- | -1 |
| Carbonate | CO32- | -2 |
| Sulfate | SO42- | -2 |
| Sulfite | SO32- | -2 |
| Chromate | CrO42- | -2 |
| Dichromate | Cr2O72- | -2 |
| Oxalate | C2O42- | -2 |
| Thiosulfate | S2O32- | -2 |
| Peroxide | O22- | -2 |
| Silicate | SiO32- | -2 |
| Phosphate | PO43- | -3 |
| Phosphite | PO33- | -3 |
| Borate | BO33- | -3 |