Difference between revisions of "Uranium"
Physchim62 (talk | contribs) (Created page with "{{Infobox element |name = uranium |symbol = U |left = protactinium |right = neptunium |above = Nd |below = — |atomic-number = 92 |atomic-weight = 238.028...") |
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|atomic-weight = 238.028 91(3) | |atomic-weight = 238.028 91(3) | ||
|configuration = [Rn] 5f<sup>3</sup> 6d<sup>1</sup> 7s<sup>2</sup> | |configuration = [Rn] 5f<sup>3</sup> 6d<sup>1</sup> 7s<sup>2</sup> | ||
| − | |phys-ref = <ref name="G&E">{{Greenwood&Earnshaw1st|pages=1450–86}}.</ref> | + | |phys-ref = <ref name="G&E">{{Greenwood&Earnshaw1st|pages=1450–86}}.</ref><ref>{{Kaye&Laby | contribution = Electrical resistivities | chapter = 2.6.1 | accessdate = 2011-04-04 | url = http://www.kayelaby.npl.co.uk/general_physics/2_6/2_6_1.html}}.</ref> |
|melting-point = 1130 °C (1400 K) | |melting-point = 1130 °C (1400 K) | ||
|boiling-point = 3930 °C (4200 K) | |boiling-point = 3930 °C (4200 K) | ||
|density = 19.05 g cm<sup>−3</sup> | |density = 19.05 g cm<sup>−3</sup> | ||
| − | |resistivity = | + | |resistivity = 28{{e|−6}} Ω cm |
|chem-ref = <ref>{{Allred (1961)}}.</ref> | |chem-ref = <ref>{{Allred (1961)}}.</ref> | ||
|electronegativity = 1.38 (Pauling) | |electronegativity = 1.38 (Pauling) | ||
| Line 22: | Line 22: | ||
|EA-ref = | |EA-ref = | ||
|EA1 = | |EA1 = | ||
| − | |thermo-ref = <ref name="G&E"/> | + | |thermo-ref = <ref name="G&E"/><ref>{{CODATA thermo}}.</ref> |
|entropy = 50.20(20) J K<sup>−1</sup> mol<sup>−1</sup> | |entropy = 50.20(20) J K<sup>−1</sup> mol<sup>−1</sup> | ||
|enthalpy-vaporization = 417 kJ mol<sup>−1</sup> | |enthalpy-vaporization = 417 kJ mol<sup>−1</sup> | ||
| − | |enthalpy-atomization = | + | |enthalpy-atomization = 533(8) kJ mol<sup>−1</sup> |
| − | |entropy-atomization = | + | |entropy-atomization = 149.59(22) J K<sup>−1</sup> mol<sup>−1</sup> |
|enthalpy-fusion = 12.6 kJ mol<sup>−1</sup> | |enthalpy-fusion = 12.6 kJ mol<sup>−1</sup> | ||
|radius-ref = <ref name="G&E"/><ref>{{Cordero et al. (2008)}}.</ref><ref>{{Shannon (1976)}}.</ref> | |radius-ref = <ref name="G&E"/><ref>{{Cordero et al. (2008)}}.</ref><ref>{{Shannon (1976)}}.</ref> | ||
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Uranium (symbol: U) is a member of the actinoid series of chemical elements.
Notes and references
Notes
References
- ↑ 1.0 1.1 1.2 Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; pp 1450–86. ISBN 0-08-022057-6.
- ↑ Electrical resistivities. In Kaye & Laby Tables of Physical & Chemical Constants, 16th ed., 1995; Chapter 2.6.1, <http://www.kayelaby.npl.co.uk/general_physics/2_6/2_6_1.html>. (accessed 4 April 2011).
- ↑ 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.
- ↑ Cordero, Beatriz; Gómez, Verónica; Platero-Prats, Ana E.; Revés, Marc; Echeverría, Jorge; Cremades, Eduard; Barragán, Flavia; Alvarez, Santiago Covalent radii revisited. Dalton Trans. 2008 (5), 2832–38. DOI: 10.1039/b801115j.
- ↑ Shannon, R. D. Revised effective ionic radii and systematic studies of interatomic distances in halids and chalcogenides. Acta Crystallogr. A 1976, 32 (5), 751–67. DOI: 10.1107/S0567739476001551.
- ↑ 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. 092-001-00-8 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 446.
Further reading
- Grenthe, Ingmar; Droz˙dz˙yn´ ski, Janusz; Fujino, Takeo; Buck, Edgar C.; Albrecht-Schmitt, Thomas E.; Wolf, Stephen F. Uranium. In The Chemistry of the Actinide and Transactinide Elements, 3rd ed.; Morss, Lester R.; Edelstein, Norman M.; Fuger, Jean, Eds.; Springer: Dordrecht, the Netherlands, 2006; Vol. 1, Chapter 5, pp 253–698. doi:10.1007/1-4020-3598-5_5, <http://radchem.nevada.edu/classes/rdch710/files/uranium.pdf>.
External links
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See also the corresponding article on Wikipedia. |
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