Technical data for Xenon

Overview
NameXenon
SymbolXe
Atomic Number54
Atomic Weight131.293
Density5.9 g/l[note]
Melting Point-111.8 °C
Boiling Point-108 °C

Thermal properties
PhaseGas
Melting Point-111.8 °C
Boiling Point-108 °C
Absolute Melting Point161.3 K
Absolute Boiling Point165.1 K
Critical Presure5.841 MPa (57.65 Atm)
Critical Temperature289.77 K
Heat of Fusion2.3 kJ/mol
Heat of Vaporization12.64 kJ/mol
Heat of CombustionN/A
Specific Heat158.32 J/(kg K)[note]
Adiabatic Index5/3
Thermal Conductivity0.00565 W/(m K)
Thermal ExpansionN/A

Bulk physical properties
Density5.9 g/l[note]
Density (Liquid)N/A
Molar Volume0.0223
Refractive Index1.000702
Speed of Sound1090 m/s
Thermal Conductivity0.00565 W/(m K)
Thermal ExpansionN/A

Reactivity
Valence6
Electronegativity2.6
ElectronAffinity0 kJ/mol
Ionization Energies
1170.4, 2046.4, 3099.4 kJ/mol

Health and Safety
Autoignition PointN/A
FlashpointN/A

Classifications
Alternate NamesNone
Nams of AllotropesNone
Blockp
Group18
Period5
Electron Configuration[Kr]4d105s25p6
ColorColorless
Discovery
1898 in United Kingdom
Gas phaseMonoatomic
CAS NumberCAS7440-63-3

Electrical properties
Electrical TypeN/A
Electrical ConductivityN/A
ResistivityN/A
Superconducting PointN/A

Magnetic properties
Magnetic TypeDiamagnetic
Mass Magnetic Susceptibility-4.3×10-9
Molar Magnetic Susceptibility-5.65×10-10
Volume Magnetic Susceptibility-2.54×10-8

Abundances
% in Universe1×10-6%
% in SunN/A
% in MeteoritesN/A
% in Earth's Crust2×10-9%
% in Oceans5×10-10%
% in HumansN/A

Atomic dimensions and structure
Atomic Radius108 pm
Covalent Radius130 pm
Van der Waals Radius216 pm
Crystal StructureFace Centered Cubic
Lattice Angles
π/2, π/2, π/2
Lattice Constants
620.23, 620.23, 620.23 pm
Space Group NameFm_ 3m
Space Group Number225

Nuclear Properties
Half-LifeStable
LifetimeStable
Isotopic Abundances
124Xe0.09%
126Xe0.09%
128Xe1.92%
129Xe26.44%
130Xe4.08%
131Xe21.18%
132Xe26.89%
134Xe10.44%
136Xe8.87%

Notes on the properties of Xenon:
Density: Density at 0° Celsius.
Specific Heat: Value given for gas phase.