Nihonium
Nihonium | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Pronunciation | /nɪˈhoʊniəm/ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Mass number | [286] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Nihonium in theperiodic table | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Group | group 13 (boron group) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Period | period 7 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Block | p-block | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Electron configuration | [Rn] 5f146d107s27p1(predicted)[1](predicted) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Electrons per shell | 2, 8, 18, 32, 32, 18, 3(predicted) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Physical properties | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
PhaseatSTP | solid(predicted)[1][2][3] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Melting point | 700K(430 °C, 810 °F)(predicted)[1] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Boiling point | 1430 K (1130 °C, 2070 °F)(predicted)[1][4] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density(nearr.t.) | 16 g/cm3(predicted)[4] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Heat of fusion | 7.61kJ/mol(extrapolated)[3] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Heat of vaporization | 130 kJ/mol(predicted)[2][4] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic properties | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
Oxidation states | (−1), (+1), (+3), (+5)(predicted)[1][5][6] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Ionization energies | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic radius | empirical: 170pm(predicted)[1] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Covalent radius | 172–180 pm(extrapolated)[3] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Other properties | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
Natural occurrence | synthetic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Crystal structure | hexagonal close-packed(hcp) (extrapolated)[7] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
CAS Number | 54084-70-7 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
History | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
Naming | AfterJapan(Nihonin Japanese) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Discovery | Riken(Japan, first undisputed claim 2004) JINR(Russia) andLivermore(US, first announcement 2003) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotopes of nihonium | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Nihonium(ニホニウム) is achemical element.It is also namedeka-thallium.It has the symbolNh.It has theatomic number113. It is atransuranium element.The name "nihonium" comes from the name ofJapaninJapanese,Nhật bổn (nihon).
Nihonium does not exist in nature, and can only be madeartificially.It is made from thealpha decayofmoscovium.
There are no known uses for nihonium. What nihonium looks like is not known because not enough has been made to see it with human eyesight. Based on trends in thePeriodic Tableit could be soft, silver color, veryreactivemetal likesodium.
History
[change|change source]On February 1, 2004, Nihonium andmoscoviumwerediscovered.A team ofRussianscientistsatDubnafrom theJoint Institute for Nuclear ResearchandAmericanscientists at theLawrence Livermore National Laboratoryfirstreportedthe chemical elements.
On September 28, 2004, a team ofJapanesescientists said that they had made the element.[11],[12],[13]
In May 2006, in theJoint Institute for Nuclear Researchmade nihonium using a different method. They found theidentityof the last products of the radioactive decay of the nihonium they made.
Name
[change|change source]Ununtrium was a temporaryIUPACsystematic element namemeaning "one-one-three" in Latin. Scientists from Japan suggested the namejaponium(symbolJp) orrikenium(Rk).[14]However, they picked Nihonium because not only is it discovered in Japan, but it means Japan, too, as Nihon is Japan or Japanese in Japanese.
References
[change|change source]- ↑1.01.11.21.31.41.51.61.7Hoffman, 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.ISBN978-1-4020-3555-5.
- ↑2.02.1Seaborg, Glenn T. (c. 2006)."transuranium element (chemical element)".Encyclopædia Britannica.Retrieved2010-03-16.
- ↑3.03.13.2Bonchev, Danail; Kamenska, Verginia (1981)."Predicting the Properties of the 113–120 Transactinide Elements".Journal of Physical Chemistry.85(9): 1177–1186.doi:10.1021/j150609a021.
- ↑4.04.14.24.34.4Fricke, 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.Retrieved4 October2013.
- ↑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.ISBN978-3-540-07109-9.Retrieved4 October2013.
- ↑Thayer, John S. (2010). "Relativistic Effects and the Chemistry of the Heavier Main Group Elements". In Barysz, Maria; Ishikawa, Yasuyuki (eds.).Relativistic Methods for Chemists.Challenges and Advances in Computational Chemistry and Physics. Vol. 10. Springer. pp. 63–67.doi:10.1007/978-1-4020-9975-5_2.ISBN978-1-4020-9974-8.
- ↑Keller, O. L., Jr.; Burnett, J. L.; Carlson, T. A.; Nestor, C. W., Jr. (1969). "Predicted Properties of the Super Heavy Elements. I. Elements 113 and 114, Eka-Thallium and Eka-Lead".The Journal of Physical Chemistry.74(5): 1127−1134.doi:10.1021/j100700a029.
{{cite journal}}
:CS1 maint: multiple names: authors list (link) - ↑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.
- ↑9.09.1Hofmann, S.; Heinz, S.; Mann, R.; Maurer, J.; Münzenberg, G.; Antalic, S.; Barth, W.; et al. (2016). "Remarks on the Fission Barriers of SHN and Search for Element 120". In Peninozhkevich, Yu. E.; Sobolev, Yu. G. (eds.).Exotic Nuclei: EXON-2016 Proceedings of the International Symposium on Exotic Nuclei.Exotic Nuclei. pp. 155–164.ISBN9789813226555.Cite error: Invalid
<ref>
tag; name "EXON" defined multiple times with different content - ↑10.010.1Hofmann, S.; Heinz, S.; Mann, R.; Maurer, J.; Münzenberg, G.; Antalic, S.; Barth, W.; et al. (2016). "Review of even element super-heavy nuclei and search for element 120".The European Physics Journal A.2016(52).doi:10.1140/epja/i2016-16180-4.Cite error: Invalid
<ref>
tag; name "Hofmann2016" defined multiple times with different content - ↑Moritaet al.,Experiment on the Synthesis of Element 113 in the Reaction209Bi(70Zn, n)278113Archived2007-07-05 at theWayback Machine,J. Phys. Soc. Jpn.Archived2007-07-01 at theWayback Machine,Vol. 73, No.10.
- ↑"press release in Japanese".Archived fromthe originalon 2007-03-01.Retrieved2019-01-15.
- ↑Japanese scientists create heaviest ever element
- ↑Discovering element 113Archived2011-08-12 at theWayback MachineRiken News. Accessed 23 November 2006.
Other websites
[change|change source]- WebElements.com - Nihonium
- Uut and Uup Add Their Atomic Mass to Periodic TableArchived2006-09-07 at theWayback Machine
- Apsidium - NihoniumArchived2008-06-15 at theWayback Machine
- Discovery of Elements 113 and 115Archived2005-06-23 at theWayback Machine
- Discovery of New Superheavy Elements 113 and 115Archived2006-12-30 at theWayback Machine
- Superheavy elements
- NihoniumatThe Periodic Table of Videos(University of Nottingham)
H | He | ||||||||||||||||||||||||||||||||||||||||
Li | Be | B | C | N | O | F | Ne | ||||||||||||||||||||||||||||||||||
Na | Mg | Al | Si | P | S | Cl | Ar | ||||||||||||||||||||||||||||||||||
K | Ca | Sc | Ti | V | Cr | Mn | Fe | Co | Ni | Cu | Zn | Ga | Ge | As | Se | Br | Kr | ||||||||||||||||||||||||
Rb | Sr | Y | Zr | Nb | Mo | Tc | Ru | Rh | Pd | Ag | Cd | In | Sn | Sb | Te | I | Xe | ||||||||||||||||||||||||
Cs | Ba | La | Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg | Tl | Pb | Bi | Po | At | Rn | ||||||||||
Fr | Ra | Ac | Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og | ||||||||||
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