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|Mass number||289 (most stable isotope) (unconfirmed: 290)|
|Flerovium in the periodic table|
|Atomic number (Z)||114|
|Group||group 14 (carbon group)|
|Element category||post-transition metalunknown chemical properties, but probably a|
|Electron configuration||[Rn] 5f14 6d10 7s2 7p2 (predicted)|
Electrons per shell
|2, 8, 18, 32, 32, 18, 4 (predicted)|
|Phase at STP||Fl: Unknown phase (predicted)|
|Boiling point||~ 210 K (~ −60 °C, ~ −80 °F) |
|Density when liquid (at m.p.)||14 g/cm3 (predicted)|
|Heat of vaporization||38 kJ/mol (predicted)|
|Oxidation states||(0), (+1), (+2), (+4), (+6) (predicted)|
|Atomic radius||empirical: 180 pm (predicted)|
|Covalent radius||171–177 pm (extrapolated)|
|Natural occurrence||Fl: Synthetic|
|Crystal structure|| face-centered cubic (fcc)|
|Naming||after Flerov Laboratory of Nuclear Reactions (itself named after Georgy Flyorov)|
|Discovery||Joint Institute for Nuclear Research (JINR) and Lawrence Livermore National Laboratory (LLNL) (1999)|
|Main isotopes of flerovium|
It currently has no use at the moment as it is being researched right now.
The discovery of Flerovium in December 1998 was reported in January 1999 by scientists at the Joint Institute for Nuclear Research in Dubna, Russia. The same team of scientists made another isotope of Fl three months later and made it again in 2004 and 2006.
In 2004 in the Joint Institute for Nuclear Research checked it was made by another method. They found the final products of radioactive decay.
Not enough Flerovium has been made to measure its physical or chemical properties. It is thought that it would be a soft, dense metal that changes colour in air. It may have a low melting point of about 200 °C.
298Fl - An undiscovered neutron-rich nucleus
According to the nuclear shell model, the undiscovered neutron-rich nucleus 298Fl may be a doubly magic nucleus, atop the shell closure at N=184. It is predicted that this atom, amid the closed nuclear shells, expected to have longer half-lives for alpha decay and spontaneous fission. However using the fusion-evaporation method to produce this nuclide is impractical, since more neutron-rich starting materials with low proton numbers are unstable due to beta decay.
Estimates for half-lives for this atom range from a few minutes to several billion years.
- "Flerovium and Livermorium". Periodic Table of Videos. The University of Nottingham. http://www.periodicvideos.com/videos/feature_flerovium_livermorium.htm. Retrieved 4 June 2012.
- Hoffman, Darleane C.; Lee, Diana M.; Pershina, Valeria (2006). "Transactinides and the future elements". In Morss; Edelstein, Norman M.; Fuger, Jean. The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Dordrecht, The Netherlands: Springer Science+Business Media. .
- Oganessian, Yu. Ts. (27 January 2017). "Discovering Superheavy Elements". Oak Ridge National Laboratory. https://www.youtube.com/watch?v=F1sCiP72SY4. Retrieved 21 April 2017.
- Seaborg, G. T.. "Transuranium element". Encyclopædia Britannica. http://www.britannica.com/EBchecked/topic/603220/transuranium-element. Retrieved 2010-03-16.
- 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. . . https://www.researchgate.net/publication/225672062_Superheavy_elements_a_prediction_of_their_chemical_and_physical_properties. Retrieved 4 October 2013.
- Schwerdtfeger, Peter; Seth, Michael (2002). "Relativistic Quantum Chemistry of the Superheavy Elements. Closed-Shell Element 114 as a Case Study". Journal of Nuclear and Radiochemical Sciences 3 (1): 133–136. http://www.radiochem.org/paper/JN31/30.pdf. Retrieved 12 September 2014.
- Pershina, Valeria. "Theoretical Chemistry of the Heaviest Elements". In Schädel, Matthias; Shaughnessy, Dawn. The Chemistry of Superheavy Elements (2nd ed.). Springer Science & Business Media. p. 154. .
- Bonchev, Danail; Kamenska, Verginia (1981). "Predicting the Properties of the 113–120 Transactinide Elements". Journal of Physical Chemistry (American Chemical Society) 85 (9): 1177–1186. . https://www.researchgate.net/publication/239657207_Predicting_the_properties_of_the_113_to_120_transactinide_elements.
- Maiz Hadj Ahmed, H.; Zaoui, A.; Ferhat, M. (2017). "Revisiting the ground state phase stability of super-heavy element Flerovium". Cogent Physics 4 (1). . https://www.tandfonline.com/doi/full/10.1080/23311940.2017.1380454. Retrieved 26 November 2018.
- IUPAC (30 May 2012). "Element 114 is Named Flerovium and Element 116 is Named Livermorium". Press release. http://www.iupac.org/news/news-detail/article/element-114-is-named-flerovium-and-element-116-is-named-livermorium.html.
- Utyonkov, V.K. | display-authors = etal (2015) Synthesis of superheavy nuclei at limits of stability: 239,240Pu + 48Ca and 249–251Cf + 48Ca reactions. Super Heavy Nuclei International Symposium, Texas A & M University, College Station TX, USA, March 31 – April 02, 2015
- Utyonkov, V. K.; Brewer, N. T.; Oganessian, Yu. Ts.; Rykaczewski, K. P.; Abdullin, F. Sh.; Dmitriev, S. N.; Grzywacz, R. K.; Itkis, M. G. et al. (15 September 2015). "Experiments on the synthesis of superheavy nuclei 284Fl and 285Fl in the 239,240Pu + 48Ca reactions". Physical Review C 92 (3): 034609. .
- Utyonkov, V. K.; Brewer, N. T.; Oganessian, Yu. Ts.; Rykaczewski, K. P.; Abdullin, F. Sh.; Dimitriev, S. N.; Grzywacz, R. K.; Itkis, M. G. et al. (30 January 2018). "Neutron-deficient superheavy nuclei obtained in the 240Pu+48Ca reaction". Physical Review C 97 (14320): 1–10. .
- (2016) "Remarks on the Fission Barriers of SHN and Search for Element 120" in Exotic Nuclei. : 155–164.
- Hofmann, S.; Heinz, S.; Mann, R.; Maurer, J.; Münzenberg, G.; Antalic, S.; Barth, W.; Burkhard, H. G. et al. (2016). "Review of even element super-heavy nuclei and search for element 120". The European Physics Journal A 2016 (52): 180. .
- Kaji, Daiya; Morita, Kosuke; Morimoto, Kouji; Haba, Hiromitsu; Asai, Masato; Fujita, Kunihiro; Gan, Zaiguo; Geissel, Hans et al. (2017). "Study of the Reaction 48Ca + 248Cm → 296Lv* at RIKEN-GARIS". Journal of the Physical Society of Japan 86 (3): 034201–1–7. .
- Oganessian, Yu. Ts. (October 1999). "Synthesis of Superheavy Nuclei in the 48Ca + 244Pu Reaction". Physical Review Letters 83: 3154. . http://link.aps.org/abstract/PRL/v83/p3154.
- Oganessian (July 1999). "Synthesis of nuclei of the superheavy element 114 in reactions induced by 48Ca". Nature 400: 242. .
- Element 114 is Named Flerovium and Element 116 is Named Livermorium
- Karpov, A. V.; Zagrebaev, V. I.; Palenzuela, Y. M. et al. (2012). "Decay properties and stability of the heaviest elements". International Journal of Modern Physics E 21 (2): 1250013-1–1250013-20. . http://nrv.jinr.ru/karpov/publications/Karpov12_IJMPE.pdf.
- WebElements.com - Uuq
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