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General information about Thallium |
| Thallium |
| Tl |
| 81 |
| Poor metals |
| 13 |
| 6 |
| p |
| silvery white |
| 204.3833(2) g·mol-1 |
1s2 2s2p6 3s2p6d10
4s2p6d10f14 5s2p6d10 6s2p1 |
| 2, 8, 18, 32, 18, 3 |
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Physical properties of Thallium |
| solid |
| 11.85 g·cm-3 |
| 577(K),
304°C, 579 °F |
| 1746(K),
1473°C, 2683 °F |
| ? |
| ? |
| 4.14 kJ·mol-1 |
| 165 kJ·mol-1 |
| 26.32 J·mol-1·K-1 |
| 1.62 (Pauling scale) |
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Atomic structure of Thallium |
| 2.08 Å |
| 17.2 cm³/mol |
| 1.48 Å |
| 3.43 |
| Hexagonal |
| ? |
| 6p1 |
| 81 |
| 123 |
| 81 |
| 3, 1 |
| 6s2p1 |
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Electron dot
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Other languages |
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| Latin: |
Thallium |
| Czech: |
Thallium |
| Croatian: |
Talij |
| French: |
Thallium |
| German: |
Thallium - s |
| Italian: |
Tallio |
| Norwegian: |
Thallium |
| Portuguese: |
Tálio |
| Spanish: |
Talio |
| Swedish: |
Tallium |
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| Element |
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81 |
2
8
18
32
18
3
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Tl |
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204.3833 |
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Brief description |
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Found in iron pyrites, crookesite, hutchinsonite and lorandite. It is generally obtained as the by-product of zinc and lead smelting. Annual world wide production is around 30 tons.
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Uses of Thallium |
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Its compounds are used in rat and ant poisons. Also for detecting infrared radiation and heart muscle research.
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Hystory of Thallium |
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- Discoverer: August Arfvedson
- Discovery Location: Sweden
- Discovery Year: 1817
- Name Origin: Greek: lithos, stone
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