Difference between revisions of "Data:First ionization energies of the elements"
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{{see|Ionization energy}} | {{see|Ionization energy}} | ||
| − | Data are taken from the [[wavenumber]] compilation of Moore (1970) unless otherwise noted, and converted using the 2006 [[CODATA recommended value]]s:<ref>{{CODATA 2006}}.</ref><ref group="Note">Moore used the conversion factor 1 cm<sup>−1</sup> = {{nowrap|0.000 123 981 eV}}, which is | + | Data are taken from the [[wavenumber]] compilation of Moore (1970) unless otherwise noted, and converted using the 2006 [[CODATA recommended value]]s:<ref>{{CODATA 2006}}.</ref><ref group="Note">Moore used the conversion factor 1 cm<sup>−1</sup> = {{nowrap|0.000 123 981 eV}}, which is 26 ppm lower than the current value. Moore's value in [[electronvolt]]s are widely reprinted without correction.</ref> |
| − | : 1 cm<sup>−1</sup> = 0. | + | : 1 cm<sup>−1</sup> = 0.000 123 984 1875(31) eV = 0.011 903 713 931(12) kJ mol<sup>−1</sup> |
{| class="wikitable sortable" | {| class="wikitable sortable" | ||
| Line 15: | Line 15: | ||
| 1 | | 1 | ||
| [[Hydrogen]] | | [[Hydrogen]] | ||
| − | | 13. | + | | 13.598 432 44(36) |
| 1305.584 631(12) | | 1305.584 631(12) | ||
| | | | ||
| Line 21: | Line 21: | ||
| 2 | | 2 | ||
| [[Helium]] | | [[Helium]] | ||
| − | | 24. | + | | 24.587 3985(14) |
| 2360.634 56(12) | | 2360.634 56(12) | ||
| | | | ||
| Line 27: | Line 27: | ||
| 3 | | 3 | ||
| [[Lithium]] | | [[Lithium]] | ||
| − | | 5. | + | | 5.391 718 96(64) |
| 517.658 593(60) | | 517.658 593(60) | ||
| | | | ||
Revision as of 07:49, 2 September 2010
Further information: Ionization energy
Data are taken from the wavenumber compilation of Moore (1970) unless otherwise noted, and converted using the 2006 CODATA recommended values:[1][Note 1]
- 1 cm−1 = 0.000 123 984 1875(31) eV = 0.011 903 713 931(12) kJ mol−1
| Z | Element | Ionization energy | Ref. | |
|---|---|---|---|---|
| (eV) | (kJ mol−1) | |||
| 1 | Hydrogen | 13.598 432 44(36) | 1305.584 631(12) | |
| 2 | Helium | 24.587 3985(14) | 2360.634 56(12) | |
| 3 | Lithium | 5.391 718 96(64) | 517.658 593(60) | |
Notes
- ↑ Moore used the conversion factor 1 cm−1 = 0.000 123 981 eV, which is 26 ppm lower than the current value. Moore's value in electronvolts are widely reprinted without correction.
References
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>.
- ↑ Mohr, Peter J.; Taylor, Barry N.; Newell, David B. CODATA Recommended Values of the Fundamental Physical Constants: 2006. Rev. Mod. Phys. 2008, 80 (2), 633–730. doi:10.1103/RevModPhys.80.633, <http://physics.nist.gov/cuu/Constants/codata.pdf>.
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