14 Facts About Krypton


Krypton is a chemical element with the symbol Kr and atomic number 36.

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Krypton light has many spectral lines, and krypton plasma is useful in bright, high-powered gas lasers, each of which resonates and amplifies a single spectral line.

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Krypton was discovered in Britain in 1898 by William Ramsay, a Scottish chemist, and Morris Travers, an English chemist, in residue left from evaporating nearly all components of liquid air.

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Krypton is characterized by several sharp emission lines the strongest being green and yellow.

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Krypton is highly volatile and does not stay in solution in near-surface water, but Kr has been used for dating old groundwater.

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William Ramsay

Krypton is usually found in the +0 oxidation state, typical of noble gases.

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Krypton is used in some photographic flashes for high speed photography.

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Krypton gas is combined with mercury to make luminous signs that glow with a bright greenish-blue light.

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Krypton is mixed with argon in energy efficient fluorescent lamps, reducing the power consumption, but reducing the light output and raising the cost.

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Krypton is used to fill incandescent lamps to reduce filament evaporation and allow higher operating temperatures.

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Krypton produces much higher light power than neon in the red spectral line region, and for this reason, red lasers for high-power laser light-shows are often krypton lasers with mirrors that select the red spectral line for laser amplification and emission, rather than the more familiar helium-neon variety, which could not achieve the same multi-watt outputs.

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Krypton-83 has application in magnetic resonance imaging for imaging airways.

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Krypton-85 is a medium lived fission product and thus escapes from spent fuel when the cladding is removed.

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Krypton is used occasionally as an insulating gas between window panes.

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