Xenon, 00 Xe A xenon-filled
discharge tube glowing light blue
Pronunciation Appearance colorless gas, exhibiting a blue glow when placed in an electric field 131.293(6)[ 3]
in the Earth's crust 2 × 10-9 % in the solar system 1.56 × 10-8 %
Group group 18 (noble gases) Period period 5 Block p-block Electron configuration [Kr ] 4d10 5s2 5p6 Electrons per shell 2, 8, 18, 18, 8 Phase at STP gas Melting point 161.40 K (−111.75 °C, −169.15 °F) Boiling point 165.051 K (−108.099 °C, −162.578 °F) Density (at STP) 5.894 g/L when liquid (at b.p. ) 2.942 g/cm3 [ 4] Triple point 161.405 K, 81.77 kPa[ 5] Critical point 289.733 K, 5.842 MPa[ 5] Heat of fusion 2.27 kJ/mol Heat of vaporization 12.64 kJ/mol Molar heat capacity 21.01[ 6] J/(mol·K) Vapor pressure
P (Pa)
1
10
100
1 k
10 k
100 k
at T (K)
83
92
103
117
137
165
Oxidation states 0 , +2, +4, +6, +8 (rarely more than 0; a weakly acidic oxide )Electronegativity Pauling scale: 2.6 Ionization energies 1st: 1170.4 kJ/mol 2nd: 2046.4 kJ/mol 3rd: 3099.4 kJ/mol Covalent radius 140±9 pm Van der Waals radius 216 pm Spectral lines of xenonNatural occurrence primordial Crystal structure face-centered cubic (fcc) Speed of sound gas: 178 m·s−1 liquid: 1090 m/s Thermal conductivity 5.65×10−3 W/(m⋅K) Magnetic ordering diamagnetic [ 7] Molar magnetic susceptibility −43.9× 10−6 cm3 /mol (298 K)[ 8] CAS Number 7440-63-3 Discovery and first isolationWilliam Ramsay and Morris Travers (1898)
Category: Xenon | references
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Xenon is a non-metal chemical element . It has the chemical symbol Xe and atomic number 54. It is one of the few elements that are a gas at the standard temperature and pressure .
↑ "xenon". Oxford English Dictionary . Vol. 20 (2nd ed.). Oxford University Press . 1989.
↑ "Xenon" . Dictionary.com Unabridged . 2010. Retrieved May 6, 2010 .
↑ "Standard Atomic Weights: Xenon" . CIAAW . 1999.
↑ "Xenon" . Gas Encyclopedia . Air Liquide . 2009.
↑ 5.0 5.1 Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). Boca Raton, FL: CRC Press . p. 4.123. ISBN 1439855110 .
↑ Hwang, Shuen-Cheng; Weltmer, William R. (2000). "Helium Group Gases". Kirk-Othmer Encyclopedia of Chemical Technology . Wiley. pp. 343–383. doi :10.1002/0471238961.0701190508230114.a01 . ISBN 0-471-23896-1 .
↑ Magnetic susceptibility of the elements and inorganic compounds , in Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5 .
↑ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics . Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4 .
↑ Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF) . Chinese Physics C . 45 (3): 030001. doi :10.1088/1674-1137/abddae .
↑ "Observation of two-neutrino double electron capture in 124 Xe with XENON1T". Nature . 568 (7753): 532–535. 2019. doi :10.1038/s41586-019-1124-4 .
↑ 11.0 11.1 Albert, J. B.; Auger, M.; Auty, D. J.; Barbeau, P. S.; Beauchamp, E.; Beck, D.; Belov, V.; Benitez-Medina, C.; Bonatt, J.; Breidenbach, M.; Brunner, T.; Burenkov, A.; Cao, G. F.; Chambers, C.; Chaves, J.; Cleveland, B.; Cook, S.; Craycraft, A.; Daniels, T.; Danilov, M.; Daugherty, S. J.; Davis, C. G.; Davis, J.; Devoe, R.; Delaquis, S.; Dobi, A.; Dolgolenko, A.; Dolinski, M. J.; Dunford, M.; et al. (2014). "Improved measurement of the 2νββ half-life of 136 Xe with the EXO-200 detector". Physical Review C . 89 . arXiv :1306.6106 . Bibcode :2014PhRvC..89a5502A . doi :10.1103/PhysRevC.89.015502 . Cite error: Invalid <ref>
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↑ Redshaw, M.; Wingfield, E.; McDaniel, J.; Myers, E. (2007). "Mass and Double-Beta-Decay Q Value of 136 Xe". Physical Review Letters . 98 (5): 53003. Bibcode :2007PhRvL..98e3003R . doi :10.1103/PhysRevLett.98.053003 .