Xenon

Atomic number54
Atomic weight131.29
Discovery (year)1898
Atomic radius (A)2.2
Melting point (oC)-111.9
Boiling point (oC)-108.1
Density (g/cm3)5.896
Specific heat (cal/g oC)@
Ionization potential (eV)12.13
Electron Affinity (eV)0