Magnesium
Properties, & Compounds
magnesium (Mg), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table, and the lightest structural metal. Its compounds are widely used in construction and medicine, and magnesium is one of the elements essential to all cellular life.
| atomic number | 12 |
|---|---|
| atomic weight | 24.305 |
| melting point | 650 °C (1,202 °F) |
| boiling point | 1,090 °C (1,994 °F) |
| specific gravity | 1.74 at 20° C (68 °F) |
| oxidation state | +2 |
| electron configuration | 1s22s22p63s2 |
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