Tennessine

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Tennessine,  117Ts
General properties
Alternative names element 117, eka-astatine
Appearance semimetallic (predictit)[1]
Mass nummer 294 (most stable isotope)
Tennessine in the periodic cairt
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Airn Cobalt Nickel Capper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Siller (element) Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gowd Mercur (element) Thallium Leid (element) Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium
At

Ts

(Usu)
livermoriumtennessineoganesson
Atomic nummer (Z) 117
Group group 17
Period period 7
Element category   unknown chemical properties
Block p-block
Electron confeeguration [Rn] 5f14 6d10 7s2 7p5 (predictit)[2]
Electrons per shell
2, 8, 18, 32, 32, 18, 7 (predictit)
Pheesical properties
Phase (at STP) solit (predictit)[2][3]
Meltin pynt 573–773 K ​(300–500 °C, ​572–932 °F) (predictit)[2]
Bylin pynt 823 K ​(550 °C, ​1022 °F) (predictit)[2]
Density (near r.t.) 7.1–7.3 g/cm3 (extrapolatit)[3]
Atomic properties
Oxidation states −1, +1, +3, +5 (predictit)[1][2]
Ionisation energies
  • 1st: 742.9 kJ/mol (predictit)[2]
  • 2nd: 1785.0–1920.1 kJ/mol (extrapolatit)[3]
Atomic radius empirical: 138 pm (predictit)[3]
Covalent radius 156–157 pm (extrapolatit)[3]
Miscellanea
CAS Nummer 54101-14-3
History
Namin IUPAC seestematic element name
Diskivery Jynt Institute for Nuclear Research an Lawrence Livermore Naitional Laboratory (2010)
Main isotopes o tennessine
Iso­tope Abun­dance Hauf-life (t1/2) Decay mode Pro­duct
294Ts[4] syn 51+41
−16
 ms
α 290Mc
293Ts[5] syn 22+8
−4
 ms
α 289Mc
| references | in Wikidata

Tennessine is a superhivy airtifeecial chemical element wi an atomic nummer o 117 an a seembol o Ts.

References[eedit | eedit soorce]

  1. 1.0 1.1 Fricke, B. (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. 
  2. 2.0 2.1 2.2 2.3 2.4 2.5 Hoffman, D. C.; Lee, D. M.; Pershina, V. (2006). "Transactinides and the future elements". In Morss; Edelstein, N. M.; Fuger, J. The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Springer Science+Business Media. pp. 1652–1752. ISBN 1-4020-3555-1. 
  3. 3.0 3.1 3.2 3.3 3.4 Bonchev, D.; Kamenska, V. (1981). "Predicting the Properties of the 113–120 Transactinide Elements". Journal of Physical Chemistry. 85 (9): 1177–1186. doi:10.1021/j150609a021. 
  4. Oganessian, Yu. Ts.; et al. (2013). "Experimental studies of the 249Bk + 48Ca reaction including decay properties and excitation function for isotopes of element 117, and discovery of the new isotope 277Mt". Physical Review C. 87 (5): 054621. Bibcode:2013PhRvC..87e4621O. doi:10.1103/PhysRevC.87.054621. 
  5. Khuyagbaatar, J.; Yakushev, A.; Düllmann, Ch. E.; et al. (2014). "48Ca+249Bk Fusion Reaction Leading to Element Z=117: Long-Lived α-Decaying 270Db and Discovery of 266Lr". Physical Review Letters. 112 (17): 172501. doi:10.1103/PhysRevLett.112.172501. 
  6. Chatt, J. (1979). "Recommendations for the naming of elements of atomic numbers greater than 100" (PDF). Pure and Applied Chemistry. 51 (2): 381–384. doi:10.1351/pac197951020381.