PERIODIC ELEMENT
Xe (Xenon)

 



Atomic number : 54
Atomic mass : 131.29 g.mol-1
Density : 5.9*10-3 g.cm-3 at 20 °C
Melting point : - 112 °C
Boiling point : - 107 °C
Vanderwaals radius : 0.217 nm
Isotopes : 21
Electronic shell : [Kr] 4d105s2 5p6
Energy of first ionisation : 1170 kJ.mol-1
Discovered by : Sir Ramsay in 1898
 
Atomic Structure Uses (powerful lamps, bubble chambers)