Template:Infobox unbinilium

  • Temp: comparing dataset and input-parameter here to check. No effect in article. [January 2019]
  • DIFF
  • (parameter is empty) -- infobox
  • [Og] 8s2 (predicted)[1] -- dataset
  • Using symb-to-elconfig dataset now. DIFFs marked here may be caused by technical issues wrt reference handling, not actual diffs. -DePiep (talk) 20:17, 3 February 2019 (UTC)
Unbinilium,  120Ubn
General properties
Pronunciation/ˌnbˈnɪliəm/ (oon--by-NIL-ee-əm)
Alternative nameselement 120, eka-radium
Mass numberunconfirmed: 299 (most stable isotope)
Unbinilium 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
Template:Periodic table (32 columns, micro)/119+
Ra

Ubn

(Usq)
ununenniumunbiniliumunbiunium
Atomic number (Z)120
Groupgroup 2 (alkaline earth metals)
Periodperiod 8
Blocks-block
Element category  alkaline earth metal (predicted)
Electron configuration[Og] 8s2 (predicted)[1]
Electrons per shell
2, 8, 18, 32, 32, 18, 8, 2 (predicted)
Physical properties
Phase at STPUbn: Unknown phase (predicted)[1][2]
Melting point953 K ​(680 °C, ​1256 °F) (predicted)[1]
Boiling point1973 K ​(1700 °C, ​3092 °F) (predicted)[3]
Density (near r.t.)7 g/cm3 (predicted)[1]
Heat of fusion8.03–8.58 kJ/mol (extrapolated)[2]
Atomic properties
Oxidation states(+1),[4] (+2), (+4) (predicted)[1]
ElectronegativityPauling scale: 0.91 (predicted)[5]
Ionization energies
  • 1st: 563.3 kJ/mol (predicted)[6]
  • 2nd: 895–919 kJ/mol (extrapolated)[2]
Atomic radiusempirical: 200 pm (predicted)[1]
Covalent radius206–210 pm (extrapolated)[2]
Other properties
Natural occurrenceUbn:
Crystal structurebody-centered cubic (bcc)
Body-centered cubic crystal structure for unbinilium

(extrapolated)[7]
CAS Number54143-58-7
History
NamingIUPAC systematic element name
Main isotopes of unbinilium
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct
299Ubn[8] syn 3.7 s? α 295Og
| references
  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 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. 2.0 2.1 2.2 2.3 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. doi:10.1021/j150609a021.
  3. Fricke, B.; Waber, J. T. (1971). "Theoretical Predictions of the Chemistry of Superheavy Elements" (PDF). Actinides Reviews. 1: 433–485. Retrieved 7 August 2013.
  4. Thayer, John S. (2010). "Relativistic Effects and the Chemistry of the Heavier Main Group Elements". Relativistic Methods for Chemists: 84. doi:10.1007/978-1-4020-9975-5_2.
  5. Pershina, V.; Borschevsky, A.; Anton, J. (2012). "Theoretical predictions of properties of group-2 elements including element 120 andtheir adsorption on noble metal surfaces". The Journal of Chemical Physics. 136 (134317). doi:10.1063/1.3699232. This article gives the Mulliken electronegativity as 2.862, which has been converted to the Pauling scale via χP = 1.35χM1/2 − 1.37.
  6. Pershina, Valeria. "Theoretical Chemistry of the Heaviest Elements". In Schädel, Matthias; Shaughnessy, Dawn (eds.). The Chemistry of Superheavy Elements (2nd ed.). Springer Science & Business Media. p. 154. ISBN 9783642374661.
  7. Seaborg, Glenn T. (1969). "Prospects for further considerable extension of the periodic table" (PDF). Journal of Chemical Education. 46 (10): 626–634. doi:10.1021/ed046p626. Retrieved 22 February 2018.
  8. (2016) "Remarks on the Fission Barriers of SHN and Search for Element 120" in Exotic Nuclei. : 155–164.