Xenon
Xenon
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Xenon ΒΆ
AtomicNumber: 54
Element: Xenon
Symbol: Xe
AtomicMass: 131.293
NumberofNeutrons: 77
NumberofProtons: 54
NumberofElectrons: 54
Period: 5
Group: 18.0
Phase: gas
Radioactive: nan
Natural: yes
Metal: nan
Nonmetal: yes
Metalloid: nan
Type: Noble Gas
AtomicRadius: 1.2
Electronegativity: nan
FirstIonization: 12.1298
Density: 0.00589
MeltingPoint: 161.45
BoilingPoint: 165.03
NumberOfIsotopes: 31.0
Discoverer: Ramsay and Travers
Year: 1898.0
SpecificHeat: 0.158
NumberofShells: 5
NumberofValence: 8.0