Chemistry of the heaviest actinides: fermium, mendelevium, nobelium, and lawrencium

Journal Article · Tue Jan 01 00:00:00 EST 1980 · ACS Symp. Ser.; (United States)

DOI:https://doi.org/10.1021/bk-1980-0131.ch012· OSTI ID:6267561

Hulet, E K

The chemical properties of the heavy actinides systematically deviate from those of their lanthanide counterparts. The differences between the later elements of the 4f and 5f series can be generally interpreted on the basis of subtle changes in electronic structure. The most important change is a lowering of the 5f energy levels with respect to the Fermi level and a wider separation between the 5f ground states and the first excited states in the 6d or 7p levels. It was concluded that these shifts toward greater stabilization of 5f orbitals with increasing atomic number are mainly supported by the appearance of the divalent oxidation state well before the end of the actinide series and the predominance of the divalent state in the next to last element in the series. The chemistry of fermium, mendelevium, nobelium, and lawrencium was discussed. 8 figures 4 tables. (DP)

• Research Organization: Lawrence Livermore Lab., CA
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6267561
• Journal Information: ACS Symp. Ser.; (United States), Vol. 131
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
FERMIUM
CHEMICAL PROPERTIES
CHEMISTRY
LAWRENCIUM
MENDELEVIUM
NOBELIUM
ELECTRONIC STRUCTURE
ACTINIDES
ELEMENTS
METALS
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
400702* - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials