Sources
open directory project
Help build the largest human-edited directory on the web.
Submit a site - Become an editor
Wikipedia. Licensed under the GNU Free Documentation License.
Are you an expert in this subject? Join the discussion and share your knowledge at Wikipedia.org.
Monatomic ion
From Wikipedia, the free encyclopedia
A monoatomic ion is an ion consisting of a single atom. A type I binary ionic compound contains a metal (cation) that forms only one type of ion. A type II ionic compound contains a metal that forms more than one type of ion, i.e., ions with different charges
| Common type I cations | |
|---|---|
| Hydrogen | H+ |
| Lithium | Li+ |
| Sodium | Na+ |
| Potassium | K+ |
| Cesium | Cs+ |
| Beryllium | Be2+ |
| Magnesium | Mg2+ |
| Calcium | Ca2+ |
| Barium | Ba2+ |
| Aluminum | Al3+ |
| Silver | Ag+ |
| Zinc | Zn2+ |
| Common anions | |
|---|---|
| hydride | H− |
| fluoride | F− |
| chloride | Cl− |
| bromide | Br− |
| iodide | I− |
| oxide | O2− |
| sulfide | S2− |
| nitride | N3− |
| phosphide | P3− |
| Common type II cations | ||
|---|---|---|
| Systematic name | Ion | Alternate name |
| iron(III) | Fe3+ | ferric |
| iron(II) | Fe2+ | ferrous |
| copper(II) | Cu2+ | cupric |
| copper(I) | Cu+ | cuprous |
| cobalt(III) | Co3+ | cobaltic |
| cobalt(II) | Co2+ | cobaltous |
| tin(IV) | Sn4+ | stannic |
| tin(II) | Sn2+ | stannous |
| lead(IV) | Pb4+ | plumbic |
| lead(II) | Pb2+ | plumbous |
| mercury(II) | Hg2+ | mercuric |
| mercury(I) | Hg22+* | mercurous |
*note that mercury (I) ions always occur bound together to form Hg2.