Krypton Properties, Molecular Formula, Applications - WorldOfChemicals

Krypton Properties




Krypton is a noble gas, occurs in trace amounts in the atmosphere, is isolated by fractionally distilling liquified air, and is often used with other rare gases in fluorescent lamps. Krypton's multiple emission lines make ionized krypton gas discharges appear whitish, which in turn makes krypton-based bulbs useful in photography as a brilliant white light source. It is thus used in some types of photographic flashes used in high speed photography. It has an important role in production and usage of the krypton fluoride laser. The laser has been important in the nuclear fusion energy research community in confinement experiments. In experimental particle physics, liquid krypton is used to construct quasi-homogeneous electromagnetic calorimeters.

Chemical Properties

Appearance Colorless Gas
Atomic Number 36
Atomic Weight 83.798 g/mol
Block p
Boiling Point -153.22 °C
CAS Number 7439-90-9
Class 2.2
Crystal Structure Cubic Face-Centered
Density 3.749 g/l
EINECS Number 231-098-5
Electron Configuration 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6
Group 18
Ionization Energy 1350.8 KJ/mol
Melting Point -157.36 °C
Oxidation State 2
Period 4
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