Difference between revisions of "Oxygen"
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|atomic-weight = 15.9994(3) | |atomic-weight = 15.9994(3) | ||
|configuration = [He] 2s<sup>2</sup> 2p<sup>4</sup> | |configuration = [He] 2s<sup>2</sup> 2p<sup>4</sup> | ||
| − | |phys-ref =  (O<sub>2</sub>)<ref name="NIST-O2">{{NIST chemistry | name = Oxygen | id = 1S/O2/c1-2 | accessdate = 2010-03-15}}.</ref> | + | |phys-ref =  (O<sub>2</sub>)<ref name="NIST-O2">{{NIST chemistry | name = Oxygen | id = 1S/O2/c1-2 | accessdate = 2010-03-15}}.</ref><ref>{{citation | contribution = Oxygen | url = http://encyclopedia.airliquide.com/encyclopedia.asp?GasID=48 | title = Gas Encyclopedia | publisher = Air Liquide | accessdate = 2010-04-03}}.</ref> |
|melting-point = 54.8(2) K (−218.8 °C) | |melting-point = 54.8(2) K (−218.8 °C) | ||
|boiling-point = 90.2(2) K (−183.0 °C) | |boiling-point = 90.2(2) K (−183.0 °C) | ||
|critical-point = 154.58 K, 50.43 bar | |critical-point = 154.58 K, 50.43 bar | ||
| + | |triple-point = 54.35 K, 1.52 mbar | ||
| + | |density = 1.354 kg m<sup>−3</sup> (1 atm, 15 °C)<br/>4.475 kg m<sup>−3</sup> (1 atm, 90.2 K)<br/>1.141 g cm<sup>−3</sup> (l, 90.2 K) | ||
|chem-ref = <ref>{{citation | first = A. L. | last = Allred | title = Electronegativity values from thermochemical data | journal = J. Inorg. Nucl. Chem. | year = 1961 | volume = 17 | issue = 3–4 | page = 215–21 | doi = 10.1016/0022-1902(61)80142-5}}.</ref> | |chem-ref = <ref>{{citation | first = A. L. | last = Allred | title = Electronegativity values from thermochemical data | journal = J. Inorg. Nucl. Chem. | year = 1961 | volume = 17 | issue = 3–4 | page = 215–21 | doi = 10.1016/0022-1902(61)80142-5}}.</ref> | ||
|electronegativity = 3.44 (Pauling) | |electronegativity = 3.44 (Pauling) | ||
| + | |solubility = 48.9 cm<sup>3</sup> dm<sup>−3</sup> (1 atm, 0 °C) | ||
|IE-ref = <ref name="NIST-Oat">{{NIST chemistry | name = Oxygen, atomic | id = 1S/O | accessdate = 2010-03-15}}.</ref><ref>{{CODATA 2002}}.</ref> | |IE-ref = <ref name="NIST-Oat">{{NIST chemistry | name = Oxygen, atomic | id = 1S/O | accessdate = 2010-03-15}}.</ref><ref>{{CODATA 2002}}.</ref> | ||
|IE1 = 13.618 06 eV,<br/>1313.943 kJ mol<sup>−1</sup> | |IE1 = 13.618 06 eV,<br/>1313.943 kJ mol<sup>−1</sup> | ||
Revision as of 08:53, 3 April 2010
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Oxygen (ˈɒksɨdʒɨn) is a colourless gas which makes up about one fifth of the Earth's atmosphere. Its name comes from the Greek ὀξύς (oxys; acid, literally "sharp", from the taste of acids) and -γενής (-genēs; producer, literally "begetter").
References
- ↑ 1.0 1.1 Oxygen. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/O2/c1-2>. (accessed 15 March 2010).
- ↑ Oxygen. In Gas Encyclopedia; Air Liquide, <http://encyclopedia.airliquide.com/encyclopedia.asp?GasID=48>. (accessed 3 April 2010).
- ↑ 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.
- ↑ 4.0 4.1 Oxygen, atomic. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/O>. (accessed 15 March 2010).
- ↑ Mohr, Peter J.; Taylor, Barry N. CODATA recommended values of the fundamental physical constants: 2002. Rev. Mod. Phys. 2005, 77 (1), 1–107. DOI: 10.1103/RevModPhys.77.1.
- ↑ 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>.
External links
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See also the corresponding article on Wikipedia. |
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