Template:Infobox unbiunium

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Unbiunium,  121Ubu
General properties
PronunciationTemplate:Infobox element/pronunciation
Alternative nameselement 121, eka-actinium
Standard atomic weight (Ar, standard)Template:Infobox element/standard atomic weight
Mass numberTemplate:Infobox element/symbol-to-most-stable-isotope (most stable isotope)
Unbiunium in the periodic table
Template:Infobox element/periodic table
Atomic number (Z)121
GroupTemplate:Infobox element/group
Periodperiod 8
Blockd-block
Element categoryTemplate:Infobox element/category format, but probably a superactinide; could be considered a transition metal
Electron configuration[Og] 8s2 8p1 (predicted)[1]
Electrons per shell
2, 8, 18, 32, 32, 18, 8, 3
(predicted)
Physical properties
unknown
Atomic properties
Oxidation statesTemplate:Infobox element/symbol-to-oxidation-state
[[Ionization energy|Template:Engvar energies]]
  • 1st: 429 (predicted)[1] kJ/mol
Template:Infobox element/spectral lines
Other properties
History
NamingIUPAC systematic element name
Main isotopes of unbiunium
Template:Infobox element/isotopes table
| references

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