Spectroscopy of trans-plutonium elements
- Lawrence Livermore National Laboratory, CA (United States)
Investigations of the emission spectra of the neutral and singly ionized atoms of the heavy actinides have been in progress since the early 1960`s in an association that used instrumentation and heavy element facilities from five laboratories. The level analyses have led to considerable understanding of the electronic structure of the elements Am to Es. When combined with the structure of the lighter actinides, a picture of the 5f{sup n}7s{sup 2} configuration increased stability as the series is ascended arises when the lowest level of known electronic configurations is plotted versus atomic number. A similar plot including the lanthanides shows how the actinides become more lanthanide in nature before the center of the series. Actinide chemical and physical properties have shown this before spectroscopic determination of the electronic configurations relative energies was accomplished. L. Brewer has used this knowledge to estimate relative energies of electronic configurations where spectroscopic values were not available.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 141399
- Report Number(s):
- CONF-930304-; TRN: 93:003688-1076
- Resource Relation:
- Conference: 205. American Chemical Society national meeting, Denver, CO (United States), 28 Mar - 2 Apr 1993; Other Information: PBD: 1993; Related Information: Is Part Of 205th ACS national meeting; PB: 1951 p.
- Country of Publication:
- United States
- Language:
- English
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