Xenon vs Einsteinium

PropertyXe XenonEs Einsteinium
Atomic number5499
SymbolXeEs
NameXenonEinsteinium
Categorynoble-gasactinide
Standard Atomic Weight131.293 u252 u
Period57
Group18N/A
Blockps
Phase at STPgassolid
Electron configuration[Kr]5s24d105p6[Rn]7s25f11
Oxidation states[0, 2, 4, 6, 8][2, 3, 4]
Electronegativity (Pauling)2.61.3
Electron affinity-0.8 eV-0.3 eV
Density5.887 kg/m³8840 kg/m³
Melting point-111.79 °C859.85 °C
Boiling point-108.1 °C-273.15 °C
Discovery year18981952