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General information about Magnesium |
| magnesium |
| Mg |
| 12 |
| alkaline earth metals |
| 2 |
| 3 |
| s |
| silvery white solid |
| 24.3050(6) g·mol-1 |
| 1s2 2s2p6 3s2 |
| 2, 8, 2 |
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Physical properties of Magnesium |
| solid |
| 1.738 g·cm-3 |
| 923(K), 650°C, 1202°F |
| 1363(K), 1091°C, 1994°F |
| ? |
| ? |
| 8.48 kJ·mol-1 |
| 128 kJ·mol-1 |
| 24.869 J·mol-1·K-1 |
| 1.31 (Pauling scale) |
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Atomic structure of Magnesium |
| 1.72 Å |
| 13.97 cm³/mol |
| 1.36 Å |
| 0.063 |
| Hexagonal |
| 66 (+2e) |
| 3s2 |
| 12 |
| 12 |
| 12 |
| 2, 1 |
| 3s2 |
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Electron dot
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Other languages |
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| Latin: |
Magnesium |
| Czech: |
Hořčík |
| Croatian: |
Magnezij |
| French: |
Magnésium |
| German: |
Magnesium - r |
| Italian: |
Magnesio |
| Norwegian: |
Magnesium |
| Portuguese: |
Magnésio |
| Spanish: |
Magnesio |
| Swedish: |
Magnesium |
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| Element |
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Brief description |
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Magnesium has a melting point of 648.8C, boiling point of 1090C, specific gravity of 1.738 (20C), and valence of 2. Magnesium metal is light (one-third lighter than aluminum), silvery-white, and relatively tough. The metal tarnishes slightly in air. Finely divided magnesium ignites upon heating in air, burning with a bright white flame.
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Uses of Magnesium |
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Magnesium is used in pyrotechnic and incendiary devices. It is alloyed with other metals to make them lighter and more easily welded, with applications in the aerospace industry. Magnesium is added to many propellents. It is used as a reducing agent in the preparation of uranium and other metals that are purified from their salts. Magnesite is used in refactories. Magnesium hydroxide (milk of magnesia), sulfate (Epsom salts), chloride, and citrate are used in medicine. Organic magnesium compounds have many uses. Magnesium is essential for plant and animal nutrition. Chlorophyll is a magnesium-centered porphyrin.
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Hystory of Magnesium |
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- Discoverer: Black
- Discovery Location: England
- Discovery Year: 1775
- Name Origin: Magnesia, a district in Thessaly, Greece
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