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Unbiunium

Chemical element
Unbiunium, also known as eka-actinium or element 121, is a hypothetical chemical element; it has symbol Ubu and atomic number 121. Unbiunium and Ubu are the temporary systematic IUPAC name and symbol respectively, which are used until the element... Wikipedia
Symbol: Ubu
Atomic number: 121
Electron configuration: 8s2 8p1 (predicted)
Electrons per shell: 2, 8, 18, 32, 32, 18, 8, 3; (predicted)
Block: g-block
Group: g-block groups (no number)
Ionization energies: : 1st: 429.4 (predicted) kJ/mol;