Polyatomic Ions and their Symbol
| 201210474 | Ammonium | NH₄⁺¹ | |
| 201210475 | Acetate | C₂H₃O₂⁻¹ | |
| 201210476 | Bromate | BrO₃⁻¹ | |
| 201210477 | Chlorate | ClO₃⁻¹ | |
| 201210478 | Cyanide | CN⁻¹ | |
| 201210479 | Dihydrogen Phosphate | H₂PO₄⁻¹ | |
| 201210480 | Hypochlorite | ClO⁻¹ | |
| 201210481 | Hydrogen Carbonate (bicarbonate) | HCO₃⁻¹ | |
| 201210482 | Hydrogen Sulfate (bisulfate) | HSO₄⁻¹ | |
| 201210483 | Hydrogen Sulfite (bisulfite) | HSO₃⁻¹ | |
| 201210484 | Hydroxide | OH⁻¹ | |
| 201210485 | Iodate | IO₃⁻¹ | |
| 201210486 | Nitrate | NO₃⁻¹ | |
| 201210487 | Nitrite | NO₂⁻¹ | |
| 201210488 | Perchlorate | ClO₄⁻¹ | |
| 201210489 | Permanganate | MnO₄⁻¹ | |
| 201210490 | Thiocyanate | SCN⁻¹ | |
| 201210491 | Carbonate | CO₃⁻² | |
| 201210492 | Chromate | CrO₄⁻² | |
| 201210493 | Dichromate | Cr₂O₇⁻² | |
| 201210494 | Oxalate | C₂O₄⁻² | |
| 201210495 | Selenate | SeO₄⁻² | |
| 201210496 | Silicate | SiO₃⁻² | |
| 201210497 | Sulfate | SO₄⁻² | |
| 201210498 | Sulfite | SO₃⁻² | |
| 201210499 | Phosphate | PO₄⁻³ | |
| 201210500 | Phosphite | PO₃⁻³ |

