Seaborgium
Seaborgium is a chemical element. In the past, it has been named eka-tungsten but is now named seaborgium. It has the symbol Sg and it has the atomic number 106. Seaborgium is a radioactive element that does not exist in nature. It has to be made. The most stable isotope is 271Sg. Seaborgium-271 has a half-life of 2.4 minutes.
| Seaborgium | |||||||||||||||||||||||||||||||||||||||||||||
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| Pronunciation | /siːˈbɔːrɡiəm/ ( listen) | ||||||||||||||||||||||||||||||||||||||||||||
| Mass number | [269] | ||||||||||||||||||||||||||||||||||||||||||||
| Seaborgium in the periodic table | |||||||||||||||||||||||||||||||||||||||||||||
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| Group | group 6 | ||||||||||||||||||||||||||||||||||||||||||||
| Period | period 7 | ||||||||||||||||||||||||||||||||||||||||||||
| Block | d-block | ||||||||||||||||||||||||||||||||||||||||||||
| Electron configuration | [Rn] 5f14 6d4 7s2[1] | ||||||||||||||||||||||||||||||||||||||||||||
| Electrons per shell | 2, 8, 18, 32, 32, 12, 2 | ||||||||||||||||||||||||||||||||||||||||||||
| Physical properties | |||||||||||||||||||||||||||||||||||||||||||||
| Phase at STP | solid (predicted)[2] | ||||||||||||||||||||||||||||||||||||||||||||
| Density (near r.t.) | 35.0 g/cm3 (predicted)[1][3] | ||||||||||||||||||||||||||||||||||||||||||||
| Atomic properties | |||||||||||||||||||||||||||||||||||||||||||||
| Oxidation states | 0, (+3), (+4), (+5), +6[1][4] (parenthesized: prediction) | ||||||||||||||||||||||||||||||||||||||||||||
| Ionization energies | |||||||||||||||||||||||||||||||||||||||||||||
| Atomic radius | empirical: 132 pm (predicted)[1] | ||||||||||||||||||||||||||||||||||||||||||||
| Covalent radius | 143 pm (estimated)[5] | ||||||||||||||||||||||||||||||||||||||||||||
| Other properties | |||||||||||||||||||||||||||||||||||||||||||||
| Natural occurrence | synthetic | ||||||||||||||||||||||||||||||||||||||||||||
| Crystal structure | body-centered cubic (bcc) (predicted)[2] | ||||||||||||||||||||||||||||||||||||||||||||
| CAS Number | 54038-81-2 | ||||||||||||||||||||||||||||||||||||||||||||
| History | |||||||||||||||||||||||||||||||||||||||||||||
| Naming | after Glenn T. Seaborg | ||||||||||||||||||||||||||||||||||||||||||||
| Discovery | Lawrence Berkeley National Laboratory (1974) | ||||||||||||||||||||||||||||||||||||||||||||
| Isotopes of seaborgium | |||||||||||||||||||||||||||||||||||||||||||||
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What Seaborgium looks like is not known because not enough has been made to see it with human eyesight, but since it is in the same period as tungsten in the periodic table, its appearance and may be similar to it.
The element is named in honor of Glenn Seaborg.
Seaborgium is a transuranium element. This means that it is "beyond" (trans) the element Uranium in the sequence of elements.
Mendeleev predicted that Seaborgium would exist. He called the element eka-tungsten because of its location was near Tungsten in the Periodic Table. The chemistry of seaborgium is like the chemistry of tungsten.
Uses
changeSeaborgium has no uses at all because of how fast it destroys itself.
Chemistry
changeSeaborgium Carbonyl (CO)⁶ was made using the same method as Tungsten. Its only known and studied as a gas.
Sources
change- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Hoffman, 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.
- ↑ 2.0 2.1 Östlin, A.; Vitos, L. (2011). "First-principles calculation of the structural stability of 6d transition metals". Physical Review B. 84 (11). Bibcode:2011PhRvB..84k3104O. doi:10.1103/PhysRevB.84.113104.
- ↑ Fricke, Burkhard (1975). "Superheavy elements: a prediction of their chemical and physical properties". Recent Impact of Physics on Inorganic Chemistry. 21: 89–144. doi:10.1007/BFb0116498. Retrieved 4 October 2013.
- ↑ 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.
- ↑ "Five new isotopes synthesized at Superheavy Element Factory". Joint Institute for Nuclear Research. 1 February 2023. Retrieved 3 February 2023.
- ↑ 8.0 8.1 Utyonkov, V. K.; Brewer, N. T.; Oganessian, Yu. Ts.; Rykaczewski, K. P.; Abdullin, F. Sh.; Dimitriev, S. N.; Grzywacz, R. K.; Itkis, M. G.; Miernik, K.; Polyakov, A. N.; Roberto, J. B.; Sagaidak, R. N.; Shirokovsky, I. V.; Shumeiko, M. V.; Tsyganov, Yu. S.; Voinov, A. A.; Subbotin, V. G.; Sukhov, A. M.; Karpov, A. V.; Popeko, A. G.; Sabel'nikov, A. V.; Svirikhin, A. I.; Vostokin, G. K.; Hamilton, J. H.; Kovrinzhykh, N. D.; Schlattauer, L.; Stoyer, M. A.; Gan, Z.; Huang, W. X.; Ma, L. (30 January 2018). "Neutron-deficient superheavy nuclei obtained in the 240Pu+48Ca reaction". Physical Review C. 97 (14320): 014320. Bibcode:2018PhRvC..97a4320U. doi:10.1103/PhysRevC.97.014320. Cite error: Invalid
<ref>tag; name "PuCa2017" defined multiple times with different content - ↑ 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.
Other websites
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