Polyatomic ions
The ions that stay together through a reaction, with their charges. Names in six languages.
| Formula | Name | Charge |
|---|---|---|
| BrO₃⁻ | bromate | -1 |
| BrO⁻ | hypobromite | -1 |
| CO₃²⁻ | carbonate | -2 |
| ClO₄⁻ | perchlorate | -1 |
| ClO₃⁻ | chlorate | -1 |
| ClO₂⁻ | chlorite | -1 |
| ClO⁻ | hypochlorite | -1 |
| IO₃⁻ | iodate | -1 |
| NO₃⁻ | nitrate | -1 |
| NO₂⁻ | nitrite | -1 |
| PO₄³⁻ | phosphate | -3 |
| PO₃³⁻ | phosphite | -3 |
| SO₄²⁻ | sulfate | -2 |
| SO₃²⁻ | sulfite | -2 |
| Cr₂O₇²⁻ | dichromate | -2 |
| HSO₄⁻ | hydrogen sulfate | -1 |
| C₂O₄²⁻ | oxalate | -2 |
| HPO₄²⁻ | hydrogen phosphate | -2 |
| CrO₄²⁻ | chromate | -2 |
| MnO₄⁻ | permanganate | -1 |
| S₂O₃²⁻ | thiosulfate | -2 |
| HCO₃⁻ | hydrogen carbonate | -1 |
| CH₃COO⁻ | acetate | -1 |
| O₂²⁻ | peroxide | -2 |
| OH⁻ | hydroxide | -1 |
| H₃O⁺ | hydronium | +1 |
| CN⁻ | cyanide | -1 |
| SCN⁻ | thiocyanate | -1 |
| NH₄⁺ | ammonium | +1 |
These tables are entered by hand rather than ingested from a source, unlike the element and nuclide data elsewhere on this site. They are checked for internal consistency against the sourced data at every build, but they carry no citation of their own.