Name       : Krypton
Symbol     : Kr 
Atomic #   : 36
Atom weight: 83.80
Melting P. : -156.6
Boiling P. : -152.30
Oxidation  : 0
Pronounced : KRIP-ton
From       : Greek kryptos, "hidden"
Identified : Sir William Ramsay and Morris W. Travers in 1898
Appearance : Dense, colorless, odorless, and tasteless gas
Note       : Rare noble gas
             
[Properties]

  Krypton is characterized as a dense, colorless, odorless, and tasteless
gas. Its naturally occurring, nonradioacitve isotopes are completely
harmless to life forms.
  The Group-0, noble gasses (now sometimes called Group VIIIA) were thought
to be totally inert until 1967. At that time, chemists began finding ways
to get these so-called inert elements to combine with others. Today
krypton fluoride is not exactly a common household chemical, but it is a 
prototype for producing similar compounds of krypton and other noble gasses
that are called clathrates.