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Common Ions
| Name | Symbol and Charge |
|---|---|
| Ammonium | (NH4)+ |
| Copper(I) | Cu+ |
| Hydrogen | H+ |
| Potassium | K+ |
| Silver | Ag+ |
| Sodium | Na+ |
| Lithium | Li+ |
| Calcium | Ca2+ |
| Barium | Ba2+ |
| Cadmium | Cd2+ |
| Cobalt(II) | Co2+ |
| Copper(II) | Cu2+ |
| Iron(II) | Fe2+ |
| Lead(II) | Pb2+ |
| Magnesium | Mg2+ |
| Tin(II) | Sn2+ |
| Zinc | Zn2+ |
| Aluminum | Al3+ |
| Iron(III) | Fe3+ |
| Lead(IV) | Pb4+ |
| Tin(IV) | Sn4+ |
| Acetate | (C2H3O2)1- |
| Bicarbonate | (HCO3)1- |
| Bisulfate | (HSO4)1- |
| Bromide | Br1- |
| Chlorate | (ClO3)1- |
| Chloride | Cl1- |
| Cyanide | (CN)1- |
| Dihydrogen Phosphate | (H2PO4)1- |
| Fluoride | F1- |
| Hydroxide | (OH)1- |
| Iodide | I1- |
| Nitrate | (NO3)1- |
| Nitrite | (NO2)1- |
| Permanganate | (MnO4)1- |
| Carbonate | (CO3)2- |
| Chromate | (CrO4)2- |
| Dichromate | (Cr2O7)2- |
| Hydrogen Phosphate | (HPO4)2- |
| Oxide | O2- |
| Peroxide | (O2)2- |
| Silicate | (SiO3)2- |
| Sulfate | (SO4)2- |
| Sulfide | S2- |
| Phosphate | (PO4)3- |