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General information about Krypton |
| Krypton |
| Kr |
| 36 |
| Noble gases |
| 18 |
| 4 |
| p |
| colorless gas |
| 83.798 g·mol-1 |
| 1s2 2s2p6 3s2p6d10 4s2p6 |
| 2, 8, 18, 8 |
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Physical properties of Krypton |
| gas |
| (0°C, 101.325 kPa)
3.749 g/L |
| 115.79(K), -157.36°C, -251.25°F |
| 119.93(K), -153.22°C, -244.12°F |
| 115.775(K), 73.2 kPa |
| 209.41(K), 5.50 MPa |
| 1.64 kJ·mol-1 |
| 9.08 kJ·mol-1 |
| 20.786 J·mol-1·K-1 |
| 3.00 (Pauling scale) |
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Atomic structure of Krypton |
| 1.03 Å |
| 38.9 cm³/mol |
| 1.12 Å |
| 25 |
| Cubic face centered |
| ? |
| 4p6 |
| 36 |
| 48 |
| 36 |
| 2 |
| 4s2p6 |
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Electron dot
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Other languages |
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| Latin: |
Krypton |
| Czech: |
Krypton |
| Croatian: |
Kripton |
| French: |
Krypton |
| German: |
Krypton - |
| Italian: |
Cripto |
| Norwegian: |
Krypton |
| Portuguese: |
Criptônio |
| Spanish: |
Criptón |
| Swedish: |
Krypton |
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| Element |
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Brief description |
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Krypton, like the other noble gases, can be used in lighting and photography. Krypton light has a large number of spectral lines, and krypton's high light output in plasmas allows it to play an important role in many high-powered gas lasers, which pick out one of the many spectral lines to amplify. There is also a specific krypton fluoride laser. The high power and relative ease of operation of krypton discharge tubes caused (from 1960 to 1983) the official meter to be defined in terms of one orange-red spectral line of krypton-86.
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Uses of Krypton |
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Used in fluorescent bulbs, flashbulbs, UV lasers and as a wavelength standard.
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Hystory of Krypton |
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- Discoverer: William Ramsay and Morris Travers
- Discovery Location: England
- Discovery Year: 1898
- Name Origin: Greek kryptos: hidden
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