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:
“There are many examples of women that have excelled in learning, and even in war, but this is no reason we should bring ‘em all up to Latin and Greek or else military discipline, instead of needle-work and housewifry.”
—Bernard Mandeville (1670–1733)
“There are many examples of women that have excelled in learning, and even in war, but this is no reason we should bring ‘em all up to Latin and Greek or else military discipline, instead of needle-work and housewifry.”
—Bernard Mandeville (1670–1733)
“The British are a self-distrustful, diffident people, agreeing with alacrity that they are neither successful nor clever, and only modestly claiming that they have a keener sense of humour, more robust common sense, and greater staying power as a nation than all the rest of the world put together.”
—Quoted in Fourth Leaders from the Times (1950)