'Jun+Jia'+Krypton+-+Ingredient+to+High-Powered+Gas+Lazers

=__**INTRODUCTION**__=

== Krypton is a noble gas, found in group 0 and period 4 of the Periodic Table. Most kids probably know this as the only weapon (Kryptonite) to destroy Superman and think of it as a awesome mysterious green solid. Krypton is in fact, a colorless, tasteless and odorless gas. It is not poisonous, so I do not know how Superman can die to such a gas. However, it is true that Krypton can be combined with other gases like xenon to produce a greenish-yellow colour. Krypton was discovered by Sir William Ramsey and Morris W. Travers, on May 1898 in England. Krypton got its name from greek word //kryptos// which somehow means hidden. Krypton has an Electronic Configuration of 2,8,**18**,8.

= = = = =__**PHYSICAL PROPERTIES**__= Krypton consists of 36 protons in its nucleus and an average atomic mass of 83.798 atomic mass units. There are, in total 31 known isotopes of this colorless gas, of which only 6 are stable. (78Kr, 80Kr, 82Kr, 83Kr, 84Kr and 86Kr. The most abundant isotope is 84Kr at 57.03%.) D: It has a melting point of -157.36 degrees Celcius, and has a boiling point of -153.22 degrees Celcius. As you can see, the melting and boiling point are awfully close, with only a difference of approximately 4 degrees.

Krypton has brilliant and magnificent green and orange spectral lines.

=**__APPLICATIONS__**= Ionized Krypton gas discharges to a very whitish-coloured light, and thus, makes krypton a good gas for making flourescent lights. Krypton-Based Bulbs are useful in high-speed photography, as the light produced is a very bright white. Another use of these bulbs are flashing airport runway lights. Furthermore, Krypton has an important role in production and usage of the [|krypton fluoride laser] (click to find out more). The laser is important in the nuclear fusion energy research community in confinement experiments. The laser has high beam uniformity, short wavelength, and the ability to modify the spot size to track an imploding pellet. ==

=__**RANDOM FACTS**__= Pure Krypton costs 33 bucks per 100grams, and is obtained commercially by fractional distillation of liquid air. :D Krypton is present in the air to the extent of about 1 ppm. The atmosphere of Mars has been found to contain 0.3 ppm of krypton. Krypton does react a bit with flourine and can create a compound known as Krypton difluoride, or KrF2.

MORE TO BE EDITED AS CNY GOES BY.

=**__BIBLIOGRAPHY__**= = =
 * __http://www.chemicool.com/elements/krypton.html__**
 * __http://en.wikipedia.org/wiki/Krypton__**
 * __http://www.hobart.k12.in.us/ksms/PeriodicTable/krypton.htm__**
 * __http://periodic.lanl.gov/elements/36.html__**

**__Image Sources:__**

 * __http://static.tvtropes.org/pmwiki/pub/images/superman_kryptonite11_138.jpg__**

Further image sources can be found by clicking on the picture itself.