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Technical data for Xenon

Click any property name to see plots of that property for all the elements.

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 Pressure5.841 MPa (57.65 Atm)
Critical Temperature289.77 K
Heat of Fusion2.3 kJ/mol
Heat of Vaporization12.64 kJ/mol
Specific Heat158.32 J/(kg K)[note]
Adiabatic Index5/3
Neel PointN/A
Thermal Conductivity0.00565 W/(m K)
Thermal ExpansionN/A

Bulk physical properties
Density5.9 g/l[note]
Density (Liquid)N/A
Molar Volume0.0223
Brinell HardnessN/A
Mohs HardnessN/A
Vickers HardnessN/A
Bulk ModulusN/A
Shear ModulusN/A
Young ModulusN/A
Poisson RatioN/A
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
DOT Hazard Class
2.2
DOT Numbers2591
RTECS Number
RTECSZE1280000
NFPA LabelN/A

Classifications
Alternate NamesNone
Names of AllotropesNone
Blockp
Group18
Period5
SeriesNoble Gas
Electron Configuration[Kr]5s24d105p6
ColorColorless
Discovery
1898 in The United Kingdom
Gas phaseMonoatomic
CAS NumberCAS7440-63-3
CID Number
CID23991
RTECS Number
RTECSZE1280000

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

Magnetic properties
Magnetic TypeDiamagnetic
Curie PointN/A
Mass Magnetic Susceptibility-4.3×10-9 m3/Kg
Molar Magnetic Susceptibility-5.65×10-10 m3/mol
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 Radius140 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
Decay ModeN/A
Quantum Numbers1S0
Neutron Cross Section25
Neutron Mass Absorption0.0083
Known Isotopes
110Xe, 111Xe, 112Xe, 113Xe, 114Xe, 115Xe, 116Xe, 117Xe, 118Xe, 119Xe, 120Xe, 121Xe, 122Xe, 123Xe, 124Xe, 125Xe, 126Xe, 127Xe, 128Xe, 129Xe, 130Xe, 131Xe, 132Xe, 133Xe, 134Xe, 135Xe, 136Xe, 137Xe, 138Xe, 139Xe, 140Xe, 141Xe, 142Xe, 143Xe, 144Xe, 145Xe, 146Xe, 147Xe
Stable Isotopes
124Xe, 126Xe, 128Xe, 129Xe, 130Xe, 131Xe, 132Xe, 134Xe, 136Xe
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.

Up to date, curated data provided by Mathematica's ElementData function from Wolfram Research, Inc.

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