| LC control no. | sh2004005779 |
|---|---|
| Topical heading | Seaborgium |
| Variant(s) | Unnilhexium |
| See also | Transplutonium elements |
| Found in | Work cat.: mm89078514: Library of Congress Manuscript Division for the Papers of Glenn Theodore Seaborg, 1866-1999 (seaborgium; element 106) WebElements periodic table on WWW, July 30, 2004 (seaborgium; symbol: Sg; atomic no.: 106; atomic weight: 266; CAS registry ID: 54038-81-2; classification: metallic; presumably a solid at 298 K; color unknown, but probably metallic and silvery white or grey in appearance; seaborgium is a synthetic element that is not present in the environment at all; it has no uses; the first samples were made through a nuclear reaction involving fusion of an isotope of californium with one of oxygen; isolation of an observable quantity of seaborgium has never been achieved; discovered by A. Ghiorso and others at Lawrence Berkeley Laboratory in Calif. and Livermore National Laboratory (U.S.) in 1974; named for Glenn T. Seaborg, American nuclear chemist and Nobel prize winner) Britannica Micro. (unnilhexium, also called Element 106 or Seaborgium, an artificially produced radioactive element in Group VIb of the periodic table) Am. heritage dict. (seaborgium: symbol Sg; also called unnilhexium) |
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