XeZ =  54

From the Greek "xenos", meaning "foreign"
(AM) Atomic Mass 131.29  amu    Oxidation States +2, +4, +6
   (BP) Boiling Point -107  °C    (MP) Melting Point -112  °C
   (ρ) Density 0.005887  g/cm3    Crystal Structure Face Centered Cubic
   ( χ ) Electronegativity n/a    (AR) Atomic Radius 1.3  Å
   Physical State Gas (C) Heat Capacity 0.158  J/g °C
Electronic-Config [Kr]  4d10  5s2  5p6     (I1) First Ionization E 1170.36  kJ/mol
   (ΔHvap) Heat of Vaporization 12.64  kJ/mol     (ΔHfus) Heat of Fusion 2.27  kJ/mol
   Year of Discovery 1898    Location of Discovery United Kingdom
(E°) Standard Potential [HXeO6]3- + 5 H2O⇔ Xe + 11 OH- (1.180 V)
Stable isotopes  124Xe,  126Xe,  128Xe,  129Xe,  130Xe,  131Xe,  132Xe,  134Xe,  136Xe
Discovered/Synthesized by Sir William Ramsay, Morris M. Travers
Natural Source Isolated from the liquifaction of air
Common Uses Lamps, headlights, stadium lamps, projectors, strobes, lasers, spacecraft ion engines
Other Info First noble gas to be shown to form chemical bonds
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