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54Xe131.293
Xenon
Noble gasesBlock pPeriod 5Group 18gas at 20 °C
Configuration :[Kr] 4d¹⁰ 5s² 5p⁶
Atomic mass :131.293 u
French :Xénon
3D Bohr-model representation of the Xenon atom (symbol Xe, atomic number Z=54). Electron shell configuration: 2, 8, 18, 18, 8 electrons.
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Bohr model · educational
Electron configuration
Full[Kr] 4d¹⁰ 5s² 5p⁶
Short[Kr] 4d¹⁰ 5s² 5p⁶
Valence electrons8
KLMNOPQ shells
K2
L8
M18
N18
O8
Electronegativity
Pauling2.6
Allen2.582
Mulliken (eV)—
Atomic radii
Empirical108 pm
Calculated108 pm
Covalent140 pm
Van der Waals216 pm
Successive ionisation energies
I₁1170.4 kJ/mol
I₂2046.4 kJ/mol
I₃3099.4 kJ/mol
Electron affinity—
Oxidation states
0+1+2+4+6+8
Bold states = most common.