Monatomic ion
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A monatomic ion is an ion consisting of many of the same atoms. 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 monatomic ions
| Common type I cations | |
|---|---|
| Hydrogen | H+ |
| Lithium | Li+ |
| Sodium | Na+ |
| Potassium | K+ |
| Caesium | 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.
See also
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
