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| {{Elementbox | |||
| #REDIRECT ] | |||
| |name=unbipentium | |||
| |number=125 | |||
| {{Redirect category shell|1= | |||
| |symbol=Ubp | |||
| {{R with possibilities}} | |||
| |left=] | |||
| |right=] | |||
| |above=- | |||
| |below=(Usp) | |||
| |series=superactinides | |||
| |series comment= | |||
| |group=n/a | |||
| |period=8 | |||
| |block=g | |||
| |series color= | |||
| |phase color= | |||
| |appearance= | |||
| |image name= | |||
| |image size= | |||
| |image name comment= | |||
| |image name 2= | |||
| |image size 2= | |||
| |image name 2 comment= | |||
| |atomic mass=unknown | |||
| |atomic mass 2= | |||
| |atomic mass comment= | |||
| |electron configuration= 5g<sup>5</sup> 8s<sup>2</sup><br>''(predicted)'' | |||
| |electrons per shell=2, 8, 18, 32, 37, 18, 8, 2<br>''(predicted)'' | |||
| |color= | |||
| |phase= | |||
| |phase comment= | |||
| |density gplstp= | |||
| |density gpcm3nrt= | |||
| |density gpcm3nrt 2= | |||
| |density gpcm3nrt 3= | |||
| |density gpcm3mp= | |||
| |melting point K= | |||
| |melting point C= | |||
| |melting point F= | |||
| |melting point pressure= | |||
| |sublimation point K= | |||
| |sublimation point C= | |||
| |sublimation point F= | |||
| |sublimation point pressure= | |||
| |boiling point K= | |||
| |boiling point C= | |||
| |boiling point F= | |||
| |boiling point pressure= | |||
| |triple point K= | |||
| |triple point kPa= | |||
| |triple point K 2= | |||
| |triple point kPa 2= | |||
| |critical point K= | |||
| |critical point MPa= | |||
| |heat fusion= | |||
| |heat fusion 2= | |||
| |heat fusion pressure= | |||
| |heat vaporization= | |||
| |heat vaporization pressure= | |||
| |heat capacity= | |||
| |heat capacity pressure= | |||
| |vapor pressure 1= | |||
| |vapor pressure 10= | |||
| |vapor pressure 100= | |||
| |vapor pressure 1 k= | |||
| |vapor pressure 10 k= | |||
| |vapor pressure 100 k= | |||
| |vapor pressure comment= | |||
| |crystal structure= | |||
| |oxidation states= | |||
| |oxidation states comment= | |||
| |electronegativity= | |||
| |number of ionization energies= | |||
| |1st ionization energy= | |||
| |2nd ionization energy= | |||
| |3rd ionization energy= | |||
| |atomic radius= | |||
| |atomic radius calculated= | |||
| |covalent radius= | |||
| |Van der Waals radius= | |||
| |magnetic ordering= | |||
| |electrical resistivity= | |||
| |electrical resistivity at 0= | |||
| |electrical resistivity at 20= | |||
| |thermal conductivity= | |||
| |thermal conductivity 2= | |||
| |thermal diffusivity= | |||
| |thermal expansion= | |||
| |thermal expansion at 25= | |||
| |speed of sound= | |||
| |speed of sound rod at 20= | |||
| |speed of sound rod at r.t.= | |||
| |Tensile strength= | |||
| |Young's modulus= | |||
| |Shear modulus= | |||
| |Bulk modulus= | |||
| |Poisson ratio= | |||
| |Mohs hardness= | |||
| |Vickers hardness= | |||
| |Brinell hardness= | |||
| |CAS number= | |||
| |isotopes= | |||
| |isotopes comment= | |||
| }} | }} | ||
| '''Unbipentium''', also known as eka-], is the hypothetical chemical element with the atomic number 125 and symbol Ubp. Calculations predict that <sup>332</sup>Ubp would be the most stable unbipentium isotope. To date, no attempt has ever been made to synthesize element 125. | |||
| ==Naming== | |||
| The name unbipentium is a systematic element name, used as a placeholder until it is confirmed by other research groups and the IUPAC decides on a name. Usually, the name suggested by the discoverer(s) is chosen. | |||
| ==Predicted chemistry== | |||
| Unbipentium might be extremely reactive and similar to neptunium. A likely oxidation sttate is +7 (based on that of neptunium). It might form a hexafluoride (UbpF<sub>6</sub>) like neptunium. | |||
| ==Electron configuration== | |||
| Leonard I. Schiff predicted that unbipentium will have the electron configuration 8s<sup>2</sup> 7d<sup>1</sup> 5g<sup>4</sup>. | |||
| ==See also== | |||
| ] -- ] | |||
| {{Compact extended periodic table}} | |||
Revision as of 17:06, 15 December 2019
Chemical element with atomic number (Ubp)
Unbipentium, also known as eka-neptunium, is the hypothetical chemical element with the atomic number 125 and symbol Ubp. Calculations predict that Ubp would be the most stable unbipentium isotope. To date, no attempt has ever been made to synthesize element 125.
Naming
The name unbipentium is a systematic element name, used as a placeholder until it is confirmed by other research groups and the IUPAC decides on a name. Usually, the name suggested by the discoverer(s) is chosen.
Predicted chemistry
Unbipentium might be extremely reactive and similar to neptunium. A likely oxidation sttate is +7 (based on that of neptunium). It might form a hexafluoride (UbpF6) like neptunium.
Electron configuration
Leonard I. Schiff predicted that unbipentium will have the electron configuration 8s 7d 5g.
See also
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- Pyykkö, Pekka (2011). "A suggested periodic table up to Z ≤ 172, based on Dirac–Fock calculations on atoms and ions". Physical Chemistry Chemical Physics. 13 (1): 161–8. Bibcode:2011PCCP...13..161P. doi:10.1039/c0cp01575j. PMID 20967377.