krypton

Element Symbol: Kr Atomic Number: 36** **Most Common Mass Number:83.80** **Physical State at Room Temperature:298K** **Meaning of the Element's Name or Latin/Greek Name: An inert gaseous element of the argon group, occurring in air to the extent of about one volume in a million.** **Uses of the Element:photographic flashes used in photography, krypton is used in some fluorescent light bulbs** **Biological Importance of the Element:has no biological importance.** **Who Discovered the Element:** **Sir William Ramsay** **How the Element was Discovered:** **The element was left in the remains after boiling away water, oxygen, nitrogen, helium, and argon from a sample of air.** **Physical Properties of the Element:Boiling Point 119.95K -153.2C -243.8°F,Melting Point 115.93K -157.22°C-251°F** **Chemical Properties of the Element:Heat of Fusion: 1.638kJ/mol** **Common Compounds of the Element:Krypton difluoride has been prepared in gram quantities and can be made by several methods. By imbedding the isotope in various solids, kryptonates are formed.** **Common Ions of the Element:none Isotopes of the Element:isotope abundances,radioactive isotopes,isotope masses,nuclear spins,and nuclear magnetic moment http://speringelements.wikispaces.com/nickel video http://www.youtube.com/watch?v=il4OOY7Zseg
 * Element Name: Krypton

[|**http://thinkexist.com/dictionary/meaning/krypton/**] [|**http://education.jlab.org/itselemental/ele036.html**] [|**http://www.rsc.org/chemsoc/visualelements/pages/pdf/krypton.PDF**] [|**http://education.jlab.org/itselemental/ele036.html**] http://environmentalchemistry.com/yogi/periodic/Kr.html**