Difference between revisions of "Hydrogen"
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|atomic-weight = 1.007 94(7) | |atomic-weight = 1.007 94(7) | ||
|configuration = 1s<sup>1</sup> | |configuration = 1s<sup>1</sup> | ||
| − | |phys-ref = <ref name="NIST">{{NIST chemistry | name = Hydrogen | id = 1S/H2/h1H | accessdate = 2010-06-20}}.</ref><ref name="G&E">{{Greenwood&Earnshaw1st|pages=38–74}}.</ref> | + | |phys-ref =  (H<sub>2</sub>)<ref name="NIST">{{NIST chemistry | name = Hydrogen | id = 1S/H2/h1H | accessdate = 2010-06-20}}.</ref><ref name="G&E">{{Greenwood&Earnshaw1st|pages=38–74}}.</ref> |
|melting-point = 13.957 K (−259.193 °C) | |melting-point = 13.957 K (−259.193 °C) | ||
|boiling-point = 20.39 K (−252.76 °C) | |boiling-point = 20.39 K (−252.76 °C) | ||
|critical-point = 33.18 K, 13.00(1) bar | |critical-point = 33.18 K, 13.00(1) bar | ||
| + | |electronegativity = | ||
|solubility = | |solubility = | ||
|IE-ref = <ref>{{NBS 34}}.</ref> | |IE-ref = <ref>{{NBS 34}}.</ref> | ||
| − | |IE1 = 13.598 432 44(36) eV<br/>1305.584 631 kJ mol<sup>−1</sup> | + | |IE1 = 13.598 432 44(36) eV<br/>1305.584 631(12) kJ mol<sup>−1</sup> |
| − | |thermo-ref = <ref name="G&E"/><ref>{{CODATA thermo}}.</ref> | + | |thermo-ref =  (H<sub>2</sub>)<ref name="G&E"/><ref>{{CODATA thermo}}.</ref> |
|entropy = 130.680(3) J K<sup>−1</sup> mol<sup>−1</sup> | |entropy = 130.680(3) J K<sup>−1</sup> mol<sup>−1</sup> | ||
|enthalpy-vaporization = 0.904 kJ mol<sup>−1</sup> | |enthalpy-vaporization = 0.904 kJ mol<sup>−1</sup> | ||
Revision as of 17:45, 21 September 2010
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Hydrogen (symbol: H) is a chemical element, the most abundant element in the universe.
References
- ↑ Hydrogen. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/H2/h1H>. (accessed 20 June 2010).
- ↑ 2.0 2.1 Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; pp 38–74. ISBN 0-08-022057-6.
- ↑ 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>.
- ↑ 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>.
- ↑ Index no. 001-001-00-9 of Annex VI, Part 3, to Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006. OJEU L353, 31.12.2008, pp 1–1355 at p 340.
External links
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See also the corresponding article on Wikipedia. |
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