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Krypton



Name Krypton
Atomic Number 36
Atomic Weight 83.798
Symbol Kr
Melting Point ( °C ) -157.37 C
Boiling Point ( °C ) -153.415 C
Density (g/cm3) 3.75
Earth crust (%)
Discovery (Year) 1898
Group 18
Electron configuration 3d10 4s2 4p6
Ionization energy (eV) 1350.8 kJ·mol−1

It is one of the products of uranium fission. Krypton was discovered by Sir William Ramsay in 1898. <ref>University of California. (2003). Krypton. Retrieved January 21, 2009, from http://periodic.lanl.gov/elements/36.html</ref> The element symbol for Krypton is Kr. The name krypton comes from the Greek word kryptos which means hidden. <ref>Bentor,Y.Krypton. Retrieved January 21, 2009, from http://periodic.lanl.gov/elements/36.html</ref> Krypton is from the production of air and can also makes bright lines of green and orange. <ref>University of California. (2003). Krypton. Retrieved January 21, 2009, from http://periodic.lanl.gov/elements/36.html</ref> Krypton can be used in lamps, photographic flash cubes, stroboscopic lamps, and lighthouses. It also gives off a great amount of light when electricity passes through it.

Discovery

Isotopes

Naturally occurring krypton is made of six stable isotopes. Krypton is an inert radioactive noble gas.

References

Unknown extension tag "references"

4. http://en.wikipedia.org/wiki/Krypton


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