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Template:Infobox tennessine/sandbox

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Ununseptium, 00Uus
Ununseptium
Appearancesemimetallic (predicted)[1]
Ununseptium in the periodic table
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 Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver 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 Gold Mercury (element) Thallium Lead 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 Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson
At

Uus

(Usu)
livermoriumununseptiumununoctium
Electron configuration(predicted)[2]
Electrons per shell2, 8, 18, 32, 32, 18, 7 (predicted)
Physical properties
Phase at STPsolid (predicted)[2][3]
Melting point573–773 K ​(300–500 °C, ​572–932 °F) (predicted)[2]
Boiling point823 K ​(550 °C, ​1022 °F) (predicted)[2]
Density (near r.t.)7.1–7.3 g/cm3 (extrapolated)[3]
Atomic properties
Oxidation statescommon: Template:Infobox element/symbol-to-oxidation-state: Symbol "Uus" not known
Ionization energies
  • 1st: 742.9 kJ/mol (prediction)[2]
  • 2nd: 1785.0–1920.1 kJ/mol (extrapolated)[3]
Atomic radiusempirical: 138 pm (predicted)[3]
Covalent radius156–157 pm (extrapolated)[3]
Other properties
CAS Number54101-14-3
History
Discovery2010
Isotopes of ununseptium
Main isotopes[4] Decay
abun­dance half-life (t1/2) mode pro­duct
293Ts synth 25 ms[4][5] α 289Mc
294Ts synth 51 ms[6] α 290Mc
 Category: Ununseptium
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References

  1. ^ a b 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.
  2. ^ a b c d e f Haire, Richard G. (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. pp. 1724, 1728. ISBN 1-4020-3555-1.{{cite book}}: CS1 maint: ref duplicates default (link)
  3. ^ a b c d e Bonchev, Danail; Kamenska, Verginia (1981). "Predicting the Properties of the 113–120 Transactinide Elements". Journal of Physical Chemistry. 85 (9). American Chemical Society: 1177–1186. doi:10.1021/j150609a021.
  4. ^ a b 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.
  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. Bibcode:2014PhRvL.112q2501K. doi:10.1103/PhysRevLett.112.172501. PMID 24836239.
  6. ^ 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.