Proceedings of transuranium elements

Conference · Wed Jan 01 04:00:00 EST 1992

OSTI ID:7190256

The identification of the first synthetic elements was established by chemical evidence. Conclusive proof of the synthesis of the first artificial element, technetium, was published in 1937 by Perrier and Segre. An essential aspect of their achievement was the prediction of the chemical properties of element 43, which had been missing from the periodic table and which was expected to have properties similar to those of manganese and rhenium. The discovery of other artificial elements, astatine and francium, was facilitated in 1939-1940 by the prediction of their chemical properties. A little more than 50 years ago, in the spring of 1940, Edwin McMillan and Philip Abelson synthesized element 93, neptunium, and confirmed its uniqueness by chemical means. On August 30, 1940, Glenn Seaborg, Arthur Wahl, and the late Joseph Kennedy began their neutron irradiations of uranium nitrate hexahydrate. A few months later they synthesized element 94, later named plutonium, by observing the alpha particles emitted from uranium oxide targets that had been bombarded with deuterons. Shortly thereafter they proved that is was the second transuranium element by establishing its unique oxidation-reduction behavior. The symposium honored the scientists and engineers whose vision and dedication led to the discovery of the transuranium elements and to the understanding of the influence of 5f electrons on their electronic structure and bonding. This volume represents a record of papers presented at the symposium.

• OSTI ID: 7190256
• Report Number(s): CONF-900802--
• Country of Publication: United States
• Language: English

Related Subjects

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11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400702 -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
664200 -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
664400 -- Experimentally Derived Information on Atomic & Molecular Properties-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ABSTRACTS
ACTINIDE COMPOUNDS
ACTINIDES
BEAMS
CHALCOGENIDES
CHEMICAL COMPOSITION
DOCUMENT TYPES
ELECTRONIC STRUCTURE
ELEMENTS
FABRICATION
FISSION PRODUCTS
FUEL CYCLE
GAMMA SPECTROMETERS
INTERACTIONS
IRRADIATION
ISOTOPE SEPARATION
ISOTOPES
LEADING ABSTRACT
MATERIALS
MEASURING INSTRUMENTS
MEETINGS
METALS
MOESSBAUER SPECTROMETERS
NEPTUNIUM
NEUTRON BEAMS
NITRATES
NITROGEN COMPOUNDS
NUCLEON BEAMS
OXIDES
OXYGEN COMPOUNDS
PARTICLE BEAMS
PLUTONIUM
RADIOACTIVE MATERIALS
REVIEWS
SEPARATION PROCESSES
SPECTROMETERS
SPECTROSCOPY
TRANSURANIUM ELEMENTS
URANIUM COMPOUNDS
URANIUM NITRATES
URANIUM OXIDES