Template:Infobox xenon

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Xenon,  54Xe
Xenon discharge tube.jpg
A xenon-filled dischairge tube glowin licht blue
General properties
Appearancecolourless gas, exhibitin a blue glow when placed in a heich voltage electric field
Staundart atomic wecht (Ar, staundart)131.293(6)[1]
Xenon in the periodic cairt
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Airn Cobalt Nickel Capper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Siller (element) Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gowd Mercur (element) Thallium Leid (element) Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium
Kr

Xe

Rn
iodinexenoncaesium
Atomic nummer (Z)54
Groupgroup 18 (noble gases)
Periodperiod 5
Element category  noble gas
Blockp-block
Electron confeeguration[Kr] 5s2 4d10 5p6
Electrons per shell
2, 8, 18, 18, 8
Pheesical properties
Phase (at STP)gas
Meltin pynt161.40 K ​(-111.75 °C, ​-169.15 °F)
Bylin pynt165.051 K ​(-108.099 °C, ​-162.578 °F)
Density (at STP)5.894 g/L
when liquid (at b.p.)3.057[2] g/cm3
Treeple pynt161.405 K, ​81.77[3] kPa
Creetical pynt289.733 K, 5.842[3] MPa
Heat o fusion2.27 kJ/mol
Heat o vapourisation12.64 kJ/mol
Molar heat capacity5R/2 = 20.786 J/(mol·K)
Vapour pressur
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 83 92 103 117 137 165
Atomic properties
Oxidation states0, +1, +2, +4, +6, +8 ​rarely mair than 0)
(weakly acidic oxide
ElectronegativityPauling scale: 2.6
Covalent radius140±9 pm
Van der Waals radius216 pm
Coloyr lines in a spectral range
Spectral lines o Infobox xenon
Miscellanea
Creestal structurface-centred cubic (fcc)
Face-centered cubic creestal structur for xenon
Speed o soond(liquid) 1090 m/s; (gas) 169 m/s
Thermal conductivity5.65×10-3  W/(m·K)
Magnetic orderindiamagnetic[4]
CAS Nummer7440-63-3
History
DiskiveryWilliam Ramsay an Morris Travers (1898)
First isolationWilliam Ramsay an Morris Travers (1898)
Main isotopes o xenon
Iso­tope Abun­dance Hauf-life (t1/2) Decay mode Pro­duct
124Xe 0.095% >4.8×1016 y (β+β+) 124Te
125Xe syn 16.9 h ε 125I
126Xe 0.089% - (β+β+) 126Te
127Xe syn 36.345 d ε 127I
128Xe 1.91% - (SF)
129Xe 26.4% - (SF)
130Xe 4.07% - (SF)
131Xe 21.2% - (SF)
132Xe 26.9% - (SF)
133Xe syn 5.247 d β 133Cs
134Xe 10.4% >1.1×1016 y (ββ) 134Ba
135Xe syn 9.14 h β 135Cs
136Xe 8.86% 2.11×1021 y[5] ββ 136Ba
Decay modes in parentheses are predictit, but hae nae yet been observed
| references | in Wikidata

References

Thir references will appear in the airticle, but this list appears anerly on this page.
  1. Meija, J.; et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry. 88 (3): 265–91. doi:10.1515/pac-2015-0305. 
  2. "Krypton". Gas Encyclopedia. Air Liquide. 2009. 
  3. 3.0 3.1 Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nt ed.). CRC Press. p. 4.123. ISBN 1439855110. 
  4. 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. 
  5. Ackerman, N.; et al. (2011). "Observation of Two-Neutrino Double-Beta Decay in 136Xe with the EXO-200 Detector". Physical Review Letters. 107 (21): 212501. arXiv:1108.4193Freely accessible. Bibcode:2011PhRvL.107u2501A. doi:10.1103/PhysRevLett.107.212501.