Difference between revisions of "Magnesium"
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Latest revision as of 20:55, 13 October 2009
| Magnesium | |
|---|---|
| Mg | |
| In situ availability: | |
| Necessity: | essential |
| Atomic number: | 12 |
| Atomic mass: | 24.305 |
| group: | 2 |
| period: | 3 |
| normal phase: | Solid |
| series: | Alkaline earth metals |
| density: | 1.738 g/cm3 |
| melting point: | 923K, 650°C, 1202°F |
| boiling point: | 1363K, 1090°C, 1994°F |
| Li ← Be → N/A | |
| Na ← Mg → Al | |
| K ← Ca → Sc | |
| Atomic radius (pm): | 150 |
| Bohr radius (pm): | 145 |
| Covalent radius (pm): | 130 |
| Van der Waals radius (pm): | 173 |
| ionic radius (pm): | (+2) 72 |
| 1st ion potential (eV): | 7.65 |
| Electron Configuration | |
| 1s2 2s2 2p6 3s2 | |
| Electrons Per Shell | |
| 2, 8, 2 | |
| Electronegativity: | 1.31 |
| Electron Affinity: | Unstable anion |
| Oxidation states: | 2 |
| Magnetism: | Paramagnetic |
| Crystal structure: | Hexagonal |
Magnesium is a Alkaline earth metal in group 2.
It has a Hexagonal crystalline structure.
This element has 3 stable isotopes: 24, 25, and 26.
"Magnesium compounds, primarily magnesium oxide, are used mainly as refractory material in furnace linings for producing iron and steel, nonferrous metals, glass, and cement. Magnesium oxide and other compounds also are used in agricultural, chemical, and construction industries. Magnesium metal's principal use is as an alloying addition to aluminum, and these aluminum-magnesium alloys are used mainly for beverage cans. Magnesium alloys also are used as structural components of automobiles and machinery. Magnesium also is used to remove sulfur from iron and steel." - USGS Magnesium Statistics and Information[1]
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