Xenon - ASCII Periodic Table of the Elements

ASCII PERIODIC TABLE OF THE ELEMENTS

  Xe

Relative atomic mass: 131.293 ± 0.006

English: Xenon
French: Xénon
Croatian: Ksenon
German: Xenon
Italian: Xeno
Spanish: Xenón

Atomic number: 54
Group numbers: 18
Period: 5
Standard state (20 °C): gas

Discovery: 1898 Sir William Ramsay, Morris William Travers (GB)

Xenon was discovered by Sir William Ramsay and Morris William Travers (GB) in 1898. The origin of the name comes from the Greek word 'xenos' meaning 'stranger'. It is a heavy, colourless, odourless, noble gas that reacts only with fluorine. Xenon is obtain from the small quantities in liquid air. It is used for filling flash lamps and other powerful lamps. Electrical excitation of xenon produces a burst of brilliant white light. It is also used in bubble chambers and modern nuclear power reactors.

Electronic configuration: [Kr] 4d¹⁰ 5s² 5p⁶
Formal oxidation number: 0
Atomic radius: 216 pm

Electronegativities: 2.6
Thermal conductivity: 0.0056 W/(m K)
Electrical resistivity (20 °C): - μΩcm

Melting point: -111.75 °C
Boiling point: -108.0 °C

Heat of fusion: 3.1 kJ/mol
Heat of vaporization: 12.65 kJ/mol
Heat of atomization: 0 kJ/mol