Periodic Table of the Elements: Magnesium
Related article: Periodic Table of the Elements (table)Periodic Table of the Elements
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| Atomic Number: | 12 |
| Atomic Symbol: | Mg |
| Magnesiummagnesium , metallic chemical element; symbol Mg; at. no. 12; at. wt. 24.3050; m.p. about 648.8°C;; b.p. about 1,090°C;; sp. gr. 1.738 at 20°C;; valence +2. In 1808, Sir Humphry Davy discovered magnesium in its oxide, although it is not certain that he isolated the ..... Click the link for more information. | |
| Atomic Weight: | 24.3050 |
| Electron Configuration: | 2 · 8 · 2 |