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General information about Platinium |
| Platinium |
| Pt |
| 78 |
| Transition Metals |
| 10 |
| 6 |
| d |
| grayish white |
| 195.084 g·mol-1 |
1s2 2s2p6 3s2p6d10
4s2p6d10f14 5s2p6d9 6s1 |
| 2, 8, 18, 32, 17, 1 |
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Physical properties of Platinium |
| solid |
| 21.45 g·cm-3 |
| 2041.4(K),
1768.3°C, 3214.9°F |
| 4098(K),
3825°C, 6917°F |
| ? |
| ? |
| 22.17 kJ·mol-1 |
| 469 kJ·mol-1 |
| 25.86 J·mol-1·K-1 |
| 2.28 (Pauling scale) |
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Atomic structure of Platinium |
| 1.83 Å |
| 9.1 cm³/mol |
| 1.3 Å |
| 0.96 |
| Cubic face centered |
| 65 (+4e) 80 (+2e) |
| 5d9 |
| 78 |
| 117 |
| 78 |
| 2, 4 |
| 5d9 6s1 |
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Electron dot
model |
Other languages |
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| Latin: |
Platinum |
| Czech: |
Platina |
| Croatian: |
Platina |
| French: |
Platine |
| German: |
Platin - e |
| Italian: |
Platino |
| Norwegian: |
Platina |
| Portuguese: |
Platina |
| Spanish: |
Platino |
| Swedish: |
Platina |
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| Element |
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78 |
2
8
18
32
17
1
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Pt |
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195.084 |
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Brief description |
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Platinum has a melting point of 1772 °C, boiling point of 3827 +/- 100 °C, specific gravity of 21.45 (20 °C), with a valence of 1, 2, 3, or 4. Platinum is a ductile and malleable silvery-white metal. It does not oxidize in air at any temperature, although it is corroded by cyanides, halogens, sulfur, and caustic alkalis. Platinum does not dissolve in hydrochloric or nitric acid, but will dissolve when the two acids are mixed to form aqua regia.
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Uses of Platinium |
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Used in jewelry, to make crucibles, special containers, as a catalyst, in dental crowns, as an anti-tumor agent and to make standard weights and measures. It is also combined with cobalt to produce very strong magnets.
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Hystory of Platinium |
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- Discoverer: at South Columbia
- Discovery Location: S. America
- Discovery Year: was known in XVIII century
- Name Origin: Spanish: platina - little silver
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