Difference between revisions of "Actinium"
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− | |IE-ref = <ref>{{citation | last = Sugar | first = Jack | title = Ionization energies of the neutral actinides | journal = J. Chem. Phys. | year = 1973 | volume = 59 | pages = 788–91 | doi = 10.1063/1.1680091}}. {{citation | last = Sugar | first = Jack | title = Revised ionization energies of the neutral actinides | journal = J. Chem. Phys. | year = 1974 | volume = 60 | page = 4103 | doi = 10.1063/1.1680874}}.</ref> | + | |IE-ref = <ref>{{citation | last = Sugar | first = Jack | title = Ionization energies of the neutral actinides | journal = J. Chem. Phys. | year = 1973 | volume = 59 | pages = 788–91 | doi = 10.1063/1.1680091}}. {{citation | last = Sugar | first = Jack | title = Revised ionization energies of the neutral actinides | journal = J. Chem. Phys. | year = 1974 | volume = 60 | page = 4103 | doi = 10.1063/1.1680874}}.</ref><ref>{{NSRDS-NBS 34}}.</ref> |
|IE1 = 5.17(12) eV<br/>499(12) kJ mol<sup>−1</sup> | |IE1 = 5.17(12) eV<br/>499(12) kJ mol<sup>−1</sup> | ||
− | |IE2 = | + | |IE2 = 12.06 eV<br/>1164 kJ mol<sup>−1</sup> |
|IE3 = | |IE3 = | ||
|EA-ref = | |EA-ref = |
Revision as of 20:44, 27 December 2010
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Actinium (symbol: Ac) is a chemical element, one of the transition metals and also an actinoid.
Notes and references
Notes
References
- ↑ 1.0 1.1 Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; pp 1102–10. ISBN 0-08-022057-6.
- ↑ Sugar, Jack Ionization energies of the neutral actinides. J. Chem. Phys. 1973, 59, 788–91. DOI: 10.1063/1.1680091. Sugar, Jack Revised ionization energies of the neutral actinides. J. Chem. Phys. 1974, 60, 4103. DOI: 10.1063/1.1680874.
- ↑ 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>.
- ↑ 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.
External links
See also the corresponding article on Wikipedia. |
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