Template:Infobox unbiunium

Unbiunium,  ₁₂₁Ubu

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