Seaborgium is a synthetic chemical element; it has symbol Sg and atomic number 106. It is named after the American nuclear chemist Glenn T. Seaborg. As a synthetic element, it can be created in a laboratory but is not found in nature. It is also radioactive; the most stable known isotope, 267Sg, has a half-life of approximately 9.8 minutes.[10]
In the periodic table of the elements, it is a d-block transactinide element. It is a member of the 7th period and belongs to the group 6 elements as the fourth member of the 6d series of transition metals. Chemistry experiments have confirmed that seaborgium behaves as the heavier homologue to tungsten in group 6. The chemical properties of seaborgium are characterized only partly, but they compare well with the chemistry of the other group 6 elements.
In 1974, a few atoms of seaborgium were produced in laboratories in the Soviet Union and in the United States. The priority of the discovery and therefore the naming of the element was disputed between Soviet and American scientists, and it was not until 1997 that the International Union of Pure and Applied Chemistry (IUPAC) established seaborgium as the official name for the element. It is one of only two elements named after a living person at the time of naming, the other being oganesson, element 118.[a]
^ abcdHoffman, Darleane C.; Lee, Diana M.; Pershina, Valeria (2006). "Transactinides and the future elements". In Morss; Edelstein, Norman M.; Fuger, Jean (eds.). The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Dordrecht, The Netherlands: Springer Science+Business Media. ISBN 1-4020-3555-1.
^ abÖstlin, A.; Vitos, L. (2011). "First-principles calculation of the structural stability of 6d transition metals". Physical Review B. 84 (11): 113104. Bibcode:2011PhRvB..84k3104O. doi:10.1103/PhysRevB.84.113104.
^Gyanchandani, Jyoti; Sikka, S. K. (10 May 2011). "Physical properties of the 6 d -series elements from density functional theory: Close similarity to lighter transition metals". Physical Review B. 83 (17): 172101. Bibcode:2011PhRvB..83q2101G. doi:10.1103/PhysRevB.83.172101.
^Kratz; Lieser (2013). Nuclear and Radiochemistry: Fundamentals and Applications (3rd ed.). p. 631.
^Fricke, Burkhard (1975). "Superheavy elements: a prediction of their chemical and physical properties". Recent Impact of Physics on Inorganic Chemistry. Structure and Bonding. 21: 89–144. doi:10.1007/BFb0116498. ISBN 978-3-540-07109-9. Retrieved 4 October 2013.
^"Periodic Table, Seaborgium". Royal Chemical Society. Retrieved 20 February 2017.
^Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.
^Oganessian, Yu. Ts.; Utyonkov, V. K.; Shumeiko, M. V.; et al. (2023). "New isotope 276Ds and its decay products 272Hs and 268Sg from the 232Th + 48Ca reaction". Physical Review C. 108 (024611). doi:10.1103/PhysRevC.108.024611.
^Oganessian, Yu. Ts.; Utyonkov, V. K.; Ibadullayev, D.; et al. (2022). "Investigation of 48Ca-induced reactions with 242Pu and 238U targets at the JINR Superheavy Element Factory". Physical Review C. 106 (24612). doi:10.1103/PhysRevC.106.024612. S2CID 251759318.
^Cite error: The named reference Ds2024 was invoked but never defined (see the help page).
^Hoffman, Ghiorso & Seaborg 2000, pp. 187–189.
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Seaborgium is a synthetic chemical element; it has symbol Sg and atomic number 106. It is named after the American nuclear chemist Glenn T. Seaborg. As...
Seaborgium (106Sg) is a synthetic element and so has no stable isotopes. A standard atomic weight cannot be given. The first isotope to be synthesized...
Seaborgium hexacarbonyl (also called seaborgium carbonyl) is the organometallic compound with the formula Sg(CO)6. Like its chromium, molybdenum, and...
table. Its members are chromium (Cr), molybdenum (Mo), tungsten (W), and seaborgium (Sg). These are all transition metals and chromium, molybdenum and tungsten...
formula Mo(CO)6. This colorless solid, like its chromium, tungsten, and seaborgium analogues, is noteworthy as a volatile, air-stable derivative of a metal...
discoverers, and only two have been named after living people: the element seaborgium was named after Glenn Seaborg, who was alive at the time of naming in...
(1912–1999), American nuclear chemist, gave name to chemical element seaborgium Helen L. Seaborg (1917–2006), American child welfare advocate and wife...
superactinide series to occur at element 157 instead). The transactinide seaborgium was named in his honor. Superheavies are radioactive and have only been...
Alice's Adventures in Wonderland 1/6 (disambiguation), for uses of "1/06" Seaborgium, chemical element with atomic number 106 This disambiguation page lists...
work was independently confirmed first, the Americans suggested the name seaborgium (Sg) in honor of Glenn T. Seaborg, an American chemist. This name was...
was accepted for element 104. Meanwhile, the American team had created seaborgium, and the next six elements had been created by a German team: bohrium...
time that an element was named after a living person (the other being seaborgium). Yuri Tsolakovich Oganessian was born in Rostov-on-Don, Russian SFSR...
named after a person who was alive at the time of naming, the other being seaborgium, and the only element whose eponym is alive as of 2024[update]. Oganesson...
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controversy, these elements received their final names in 1997, including seaborgium (106) in honour of Seaborg. The TWG's criteria were used to arbitrate...