54
Xe
131.29
Xenon
Element 54 · 131.29 u · p-block
noble gas
A noble gas used in high-intensity lamps, ion propulsion engines, and medical imaging.
Phase (STP)
Gas
Melting Point
-111.75 °C
Boiling Point
-108.1 °C
Density
0.005887 g/cm³
Electronegativity
2.6
Atomic Radius
108 pm
Ionization Energy
1170 kJ/mol
Electron Affinity
0 kJ/mol
Discovered
1898 · William Ramsay
Electron Configuration
[Kr] 4d10 5s2 5p6
Electron Orbitals
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