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General information about Radon |
| Radon |
| Rn |
| 86 |
| Noble gases |
| 18 |
| 6 |
| p |
| colorless |
| (222) g·mol-1 |
1s2 2s2p6 3s2p6d10 4s2p6d10f14
5s2p6d10 6s2p6 |
| 2, 8, 18, 32, 18, 8 |
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Physical properties of Radon |
| gas |
| ? g/L |
| 202(K), -71.15°C, -96 °F |
| 211.3(K), -61.85 °C, -79.1 °F |
| ? |
| 377(K), 6.28 MPa |
| 3.247 kJ·mol-1 |
| 18.10 kJ·mol-1 |
| 20.786 J·mol-1·K-1 |
| ? |
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Atomic structure of Radon |
| 1.34 Å |
| 50.5 cm³/mol |
| ? |
| 0.72 |
| Cubic face centered |
| ? |
| 6p6 |
| 86 |
| 136 |
| 86 |
| 2 |
| 6s2p6 |
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Electron dot
model |
Other languages |
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| Latin: |
Radon |
| Czech: |
Radon |
| Croatian: |
Radon |
| French: |
Radon |
| German: |
Radon - r |
| Italian: |
Radon |
| Norwegian: |
Radon |
| Portuguese: |
Radônio |
| Spanish: |
Radón |
| Swedish: |
Radon |
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| Element |
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86 |
2
8
18
32
18
8
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Rn |
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(222) |
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Brief description |
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Radon has a melting point of -71 C, boiling point of -61.8 C, gas density of 9.73 g/l, specific gravity of the liquid state of 4.4 at -62C, specific gravity of the solid state of 4, usually with a valence of 0 (it does form some compounds, however, such as radon fluoride). Radon is a colorless gas at normal temperatures. It is also the heaviest of the gases. When it is cooled below its freezing point it displays a brilliant phosphorescence. The phosphorescence is yellow as the temperature is lowered, becoming orange-red at the temperature of liquid air. Inhalation of radon presents a health risk. Radon build-up is a health consideration when working with radium, thorium, or actinium. It is also a potential issue in uranium mines.
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Uses of Radon |
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Used to treat some forms of cancer, also used in earthquake prediction.
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Hystory of Radon |
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- Discoverer: Fredrich Ernst Dorn
- Discovery Location: Germany
- Discovery Year: 1900
- Name Origin: Radon was once called niton, from the Latin word nitens, which means 'shining'
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