Examples of Common Polyatomic Ions
The following tables give examples of commonly encountered polyatomic ions. Only a few representatives are given, as the number of polyatomic ions encountered in practice is very large.
| Anions | |
|---|---|
| Acetate (ethanoate) | CH3COO− or C2H3O− 2 |
| Acetylide | C2− 2 |
| Benzoate | C6H5COO− or C7H5O− 2 |
| Bicarbonate (hydrogen carbonate) | HCO− 3 |
| Carbonate | CO2− 3 |
| Cyanide | CN− |
| Hydroxide | OH− |
| Nitrate | NO− 3 |
| Phosphate | PO3− 4 |
| Sulfate | SO2− 4 |
| Cations | |
|---|---|
| Ammonium | NH+ 4 |
| Phosphonium | PH+ 4 |
| Hydronium | H3O+ |
| Fluoronium | H2F+ |
| Mercury(I) | Hg2+ 2 |
| Tropylium | C7H+ 7 |
| Guanidinium | C(NH2)+ 3 |
Read more about this topic: Polyatomic Ion
Famous quotes containing the words examples of, examples and/or common:
“It is hardly to be believed how spiritual reflections when mixed with a little physics can hold people’s attention and give them a livelier idea of God than do the often ill-applied examples of his wrath.”
—G.C. (Georg Christoph)
“Histories are more full of examples of the fidelity of dogs than of friends.”
—Alexander Pope (1688–1744)
“Theodotus: Caesar: once in ten generations of men, the world gains an immortal book. Caesar: If it did not flatter mankind, the common executioner would burn it.”
—George Bernard Shaw (1856–1950)