Template:Infobox unbinilium: Difference between revisions

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Latest revision as of 17:28, 13 November 2018

Unbinilium,  120Ubn
General properties
PronunciationTemplate:Infobox element/pronunciation
Alternative nameselement 120, eka-radium
Standard atomic weight (Ar, standard)Template:Infobox element/standard atomic weight
Mass numberTemplate:Infobox element/symbol-to-most-stable-isotope (most stable isotope)
Unbinilium in the periodic table
Template:Infobox element/periodic table
Atomic number (Z)120
GroupTemplate:Infobox element/group
Periodperiod 8
Blocks-block
Element categoryTemplate:Infobox element/category format, but probably an alkaline earth metal
Electron configuration[Og] 8s2 (predicted)[1]
Electrons per shell
2, 8, 18, 32, 32, 18, 8, 2 (predicted)
Physical properties
Phase at STPsolid (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 statesTemplate:Infobox element/symbol-to-oxidation-state
ElectronegativityPauling scale: 0.91 (predicted)[4]
[[Ionization energy|Template:Engvar energies]]
  • 1st: 563.3 kJ/mol (predicted)[5]
  • 2nd: 895–919 kJ/mol (extrapolated)[2]
Atomic radiusempirical: 200 pm (predicted)[1]
Covalent radius206–210 pm (extrapolated)[2]
Template:Infobox element/spectral lines
Other properties
Crystal structure ​Template:Infobox element/crystal structure
(extrapolated)[6]
CAS Number54143-58-7
History
NamingIUPAC systematic element name
Main isotopes of unbinilium
Template:Infobox element/isotopes table
| references

Template:Infobox element/element navigation Template:Template reference list Expression error: Unrecognized word "template".

  1. ↑ 1.0 1.1 1.2 1.3 1.4 Cite error: Invalid <ref> tag; no text was provided for refs named Haire
  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. ↑ 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.
  5. ↑ 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.
  6. ↑ 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.
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