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Xenon, 54Xe |
| Xenon |
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| Pronunciation | |
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| Appearance | colourless gas, exhibitin a blue glow when placed in a heich voltage electric field |
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| Standard atomic weight Ar, std(Xe) | 7002131293000000000♠131.293(6)[3] |
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| Xenon in the periodic cairt |
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|
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| Atomic nummer (Z) | 54 |
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| Group | group 18 (noble gases) |
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| Period | period 5 |
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| Block | p-block |
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| Element category | Noble gas |
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| Electron confeeguration | [Kr] 4d10 5s2 5p6 |
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| Electrons per shell | 2, 8, 18, 18, 8 |
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| Pheesical properties |
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| Phase at STP | gas |
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| Meltin pynt | 161.40 K (-111.75 °C, -169.15 °F) |
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| Bylin pynt | 165.051 K (-108.099 °C, -162.578 °F) |
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| Density (at STP) | 5.894 g/L |
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| whan liquid (at b.p.) | 3.057[4] g/cm3 |
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| Treeple pynt | 161.405 K, 81.77[5] kPa |
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| Creetical pynt | 289.733 K, 5.842[5] MPa |
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| Heat o fusion | 2.27 kJ/mol |
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| Heat o vapourisation | 12.64 kJ/mol |
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| Molar heat capacity | 5R/2 = 20.786 J/(mol·K) |
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Vapour pressur
| P (Pa)
|
1
|
10
|
100
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1 k
|
10 k
|
100 k
|
| at T (K)
|
83
|
92
|
103
|
117
|
137
|
165
|
|
| Atomic properties |
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| Oxidation states | 0, +1, +2, +4, +6, +8 rarely non-0, waikly acidic |
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| Electronegativity | Pauling scale: 2.6 |
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| Covalent radius | 140±9 pm |
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| Van der Waals radius | 216 pm |
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 Colour lines in a spectral rangeSpectral lines o xenon |
| Ither properties |
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| Naitural occurrence | primordial |
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| Creestal structur | face-centred cubic (fcc) |
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| Speed o soond | (liquid) 1090 m/s; (gas) 169 m/s |
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| Thermal conductivity | 5.65×10-3 W/(m·K) |
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| Magnetic orderin | diamagnetic[6] |
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| CAS Nummer | 7440-63-3 |
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| History |
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| Diskivery | William Ramsay an Morris Travers (1898) |
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| First isolation | William Ramsay an Morris Travers (1898) |
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| Main isotopes o xenon |
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|
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| Decay modes in parentheses are predictit, but hae nae yet been observed |
| | references |
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in
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calc from C
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diff
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report
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ref
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| C
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| —
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—
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| K
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161.40
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161.40
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0
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| F
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-169.15
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−169.15
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0
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| WD
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String Module Error: Target string is empty ! 
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| input
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C: -111.75, K: 161.40, F: -169.15
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| comment
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| style="text-align:left"|
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|
in
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calc from C
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diff
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report
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ref
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| C
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| —
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—
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|
|
| K
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165.051
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165.051
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0
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| F
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-162.578
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−162.578
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0
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|
|
| WD
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String Module Error: Target string is empty !
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| input
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C: -108.099, K: 165.051, F: -162.578
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| comment
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References
Thir references will appear in the airticle, but this list appears anerly on this page.
- ↑ Simpson, J. A.; Weiner, E. S. C., eds. (1989). "Xenon". Oxford English Dictionary. 20 (2nd ed.). Clarendon Press. ISBN 0-19-861232-X.
- ↑ "Xenon". Dictionary.com Unabridged. 2010. Retrieved 6 Mey 2010.
- ↑ Meija, Juris; 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.
- ↑
"Krypton". Gas Encyclopedia. Air Liquide. 2009.
- ↑ a b Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nt ed.). CRC Press. p. 4.123. ISBN 1439855110.
- ↑ 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.
- ↑
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:1108.4193. Bibcode:2011PhRvL.107u2501A. doi:10.1103/PhysRevLett.107.212501.
