Difference between revisions of "Mendelevium"
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|atomic-number = 101 | |atomic-number = 101 | ||
|configuration = [Rn] 5f<sup>13</sup> 7s<sup>2</sup> | |configuration = [Rn] 5f<sup>13</sup> 7s<sup>2</sup> | ||
| − | |phys-ref = | + | |phys-ref = |
|melting-point = | |melting-point = | ||
|density = | |density = | ||
| − | |chem-ref = <ref>{{Pauling3rd|pages=88–95}}.</ref><ref group="note" name="est"/> | + | |chem-ref = <ref>{{Pauling3rd|pages=88–95}}.</ref><ref group="note" name="est">Many of the properties of mendelevium are only known through estimation and/or extrapolation.</ref> |
|electronegativity = 1.3 (Pauling) | |electronegativity = 1.3 (Pauling) | ||
|IE-ref = | |IE-ref = | ||
|IE1 = ''see text'' | |IE1 = ''see text'' | ||
| − | |radius-ref = <ref | + | |radius-ref = <ref>{{citation | last1 = David | first1 = F. | last2 = Samhoun | first2 = K. | last3 = Guillaumont | first3 = R. | last4 = Edelstein | first4 = N. | year = 1978 | title = Thermodynamic properties of 5''f'' elements | journal = J. Inorg. Nucl. Chem. | volume = 40 | issue = 1 | pages = 69–74 | doi = 10.1016/0022-1902(78)80309-1}}.</ref><ref>{{citation | last1 = Brüchle | first1 = W. | last2 = Schädel | first2 = M. | last3 = Scherer | first3 = U. W. | last4 = Kratz | first4 = J. V. | last5 = Gregorich | first5 = K. E. | last6 = Lee | first6 = D. | last7 = Nurmia | first7 = M. | last8 = Chasteler | first8 = R. M. | last9 = Hall | first9 = H. L. | last10 = Henderson | first10 = R. A. | last11 = Hoffman | first11 = D. C. | year = 1988 | title = The hydration enthalpies of Md<sup>3+</sup> and Lr<sup>3+</sup> | journal = Inorg. Chim. Acta | volume = 146 | issue = 2 | pages = 267–76 | doi = 10.1016/S0020-1693(00)80619-2}}.</ref><ref group="note" name="est"/> |
|metallic-radius = 194(10) pm | |metallic-radius = 194(10) pm | ||
|ionic-radius = | |ionic-radius = | ||
| − | |thermo-ref = <ref | + | |thermo-ref = <ref>{{citation | last1 = Haire | first1 = R. G. | last2 = Gibson | first2 = J. K. | title = Selected systematic properties and some recent investigations of actinide metals and alloys | journal = J. Radioanal. Nucl. Chem. | year = 1990 | volume = 143 | issue = 1 | pages = 35–51 | doi = 10.1007/BF02117545}}.</ref> |
|enthalpy-vaporization = 134–142 kJ mol<sup>−1</sup> | |enthalpy-vaporization = 134–142 kJ mol<sup>−1</sup> | ||
|entropy-atomization = | |entropy-atomization = | ||
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Mendelevium (symbol: Md) is a synthetic chemical element and a member of the actinoid series. It cannot be formed by neutron bombardment in a nuclear reactor, but must instead be produced in particle accelerators. Mendelevium cannot be produced in macroscopic quantities.
Notes and references
Notes
- ↑ Jump up to: 1.0 1.1 Many of the properties of mendelevium are only known through estimation and/or extrapolation.
References
- Jump up ↑ Pauling, Linus The Nature of the Chemical Bond, 3rd ed.; Ithaca, NY, 1960; pp 88–95. ISBN 0-8014-0333-2.
- Jump up ↑ David, F.; Samhoun, K.; Guillaumont, R.; Edelstein, N. Thermodynamic properties of 5f elements. J. Inorg. Nucl. Chem. 1978, 40 (1), 69–74. DOI: 10.1016/0022-1902(78)80309-1.
- Jump up ↑ Brüchle, W.; Schädel, M.; Scherer, U. W.; Kratz, J. V.; Gregorich, K. E.; Lee, D.; Nurmia, M.; Chasteler, R. M., et al. The hydration enthalpies of Md3+ and Lr3+. Inorg. Chim. Acta 1988, 146 (2), 267–76. DOI: 10.1016/S0020-1693(00)80619-2.
- Jump up ↑ Haire, R. G.; Gibson, J. K. Selected systematic properties and some recent investigations of actinide metals and alloys. J. Radioanal. Nucl. Chem. 1990, 143 (1), 35–51. DOI: 10.1007/BF02117545.
External links
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See also the corresponding article on Wikipedia. |
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