COMMON IONS BY CHARGE
A. Positive Ions
| + 1 | |||
| Ammonium | NH4+ | Mercury(I) (mercurous) | Hg22+ |
| Copper(I) (cuprous) | Cu+ | Potassium | K+ |
| Hydrogen | H+ | Silver | Ag+ |
| Hydronium | H3O+ | Sodium | Na+ |
| Lithium | Li+ | ||
| + 2 | |||
| Barium | Ba2+ | Magnesium | Mg2+ |
| Cadmium | Cd2+ | Manganese(II) (manganous) | Mn2+ |
| Calcium | Ca2+ | Mercury(II) (mercuric) | Hg2+ |
| Cobalt(II) (cobaltous) | Co2+ | Nickel(II) (nickelous) | Ni2+ |
| Copper(II) (cupric) | Cu2+ | Strontium | Sr2+ |
| Iron(II) (ferrous) | Fe2+ | Tin(II) (stannous) | Sn2+ |
| Lead(II) (plumbous) | Pb2+ | Zinc | Zn2+ |
| + 3 | |||
| Aluminum | Al3+ | Cerium(III) (cerous) | Ce3+ |
| Antimony(III) | Sb3+ | Chromium(III) (chromic) | Cr3+ |
| Arsenic(III) | As3+ | Iron(III) (ferric) | Fe3+ |
| Bismuth(III) | Bi3+ | ||
| + 4 | |||
| Lead(IV) (plumbic) | Pb4+ | Tin(IV) (stannic) | Sn4+ |
| + 5 | |||
| Antimony(V) | Sb5+ | Bismuth(V) | Bi5+ |
| Arsenic(V) | As5+ |
B. Negative ions
| - 1 | |||
| Acetate | C2H3O2- | Hydrogen sulfate (bisulfate) | HSO4- |
| Bromate | BrO3- | Hydrogen sulfite (bisulfite) | HSO3- |
| Bromide | Br- | Hydroxide | OH- |
| Chlorate | ClO3- | Hypochlorite | ClO- |
| Chloride | Cl- | Iodate | IO3- |
| Chlorite | ClO2- | Iodide | I- |
| Cyanate | NCO- | Nitrate | NO3- |
| Cyanide | CN- | Nitrite | NO2- |
| Fluoride | F- | Perchlorate | ClO4- |
| Hydride | H- | Permanganate | MnO4- |
| Hydrogen carbonate (bicarbonate) | HCO3- | Thiocyanate | SCN- |
| - 2 | |||
| Carbonate | CO32- | Sulfate | SO42- |
| Chromate | CrO42- | Sulfide | S2- |
| Dichromate | Cr2O72- | Sulfite | SO32- |
| Oxalate | C2O42- | Tetrathionate | S4O62- |
| Oxide | O2- | Thiosulfate | S2O32- |
| Persulfate | S2O82- | ||
| - 3 | |||
| Ferricyanide | Fe(CN)63- | Phosphate | PO43- |
| - 4 | |||
| Ferrocyanide | Fe(CN)64- |
restarted at zero on 07/27/12