Neon

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{{Infobox element |name = neon |symbol = Ne |left = fluorine |right = sodium |above = [[Helium|He |below = Ar |atomic-number = 10 |atomic-weight = 20.1797(6) |configuration = [He] 2s2 2p6 |phys-ref = [1][2] |melting-point = 24.56 K (−248.59 °C) |boiling-point = 27.07 K (−246.08 °C) |critical-point = 44.4 K, 27.56 bar |triple-point = 24.56 K, 0.4337 bar |density = 0.853 kg m−3 (1 atm, 15 °C)
1.207 g cm−3 (l, 85.2 K) |chem-ref = [3][4] |electronegativity = |solubility = |IE-ref = [5][6] |IE1 = 21.564 539(7) eV,
2080.6619(7) kJ mol−1 |IE2 = 40.962 eV,
3952.2 kJ mol−1 |IE3 = 63.45 eV,
6122 kJ mol−1 |IE4 = 97.11 eV,
9370 kJ mol−1 |IE5 = 126.21 eV,
12177 kJ mol−1 |IE6 = 157.93 eV
15238 kJ mol−1 |IE7 = 207.27 eV,
19999 kJ mol−1 |IE8 = 239.09 eV,
23069 kJ mol−1 |radius-ref = [7] |vdw-radius = 154 pm |thermo-ref = [8][2] |entropy = 146.328(3) J K−1 mol−1 |enthalpy-fusion = 0.335 kJ mol−1 |enthalpy-vaporization = 1.790 kJ mol−1 |heat-capacity = 21 J K−1 mol−1 |misc-ref = |CAS-number = 7440-01-9 |EC-number = 231-110-9 |StdInChIKey = GKAOGPIIYCISHV-UHFFFAOYSA-N }} Neon (symbol: Ne) is a noble gas.

Notes and references

Notes

References

  1. Neon. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/Ne>. (accessed 13 April 2011).
  2. 2.0 2.1 Neon. In Gas Encyclopedia; Air Liquide, <http://encyclopedia.airliquide.com/encyclopedia.asp?GasID=46>. (accessed 13 April).
  3. Allred, A. L. Electronegativity values from thermochemical data. J. Inorg. Nucl. Chem. 1961, 17 (3–4), 215–21. DOI: 10.1016/0022-1902(61)80142-5.
  4. Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; pp 920–1041. ISBN 0-08-022057-6.
  5. Kaufman, Victor; Minnhagen, Lennart Accurate Ground-Term Combinations in Ne I. J. Opt. Soc. Am. 1972, 62 (1), 92–95. DOI: 10.1364/JOSA.62.000092.
  6. Moore, Charlotte E. Ionization potentials and ionization limits derived from the analyses of optical spectra. Natl. Stand. Ref. Data Ser., (U.S. Natl. Bur. Stand.) 1970, 34, 1–22, <http://www.nist.gov/data/nsrds/NSRDS-NBS34.pdf>.
  7. Bondi, A. van der Waals Volumes and Radii. J. Phys. Chem. 1964, 68 (3), 441–51. DOI: 10.1021/j100785a001.
  8. Cox, J. D.; Wagman, D. D.; Medvedev, V. A. CODATA Key Values for Thermodynamics; Hemisphere: New York, 1989. ISBN 0891167587, <http://www.codata.org/resources/databases/key1.html>.

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