54 Xe

Xenon

Noble gas
Atomic number54
CategoryNoble gas
Atomic mass131.29
Electron configuration[Kr]4d¹⁰ 5s² 5p⁶
Oxidation states0, +2 … +8
Electronegativity2.6
Melting point-111.7 °C
Boiling point-108 °C
Density0.006 g/cm³
Crystal structureFace-centred cubic
Group18
Period5
Blockp
Discovered1,898
Crustal abundance0 ppm

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