Template:Infobox unbiunium

{{Infobox element

|name =unbiunium

|symbol =Ubu

|Z =121

|number =121

|alt names=eka-actinium, superactinium

|left=unbinilium

|right=unbibium

|above=—

|below=—

|appearance=

|image name=

|electrons per shell=2, 8, 18, 32, 32, 18, 8, 3
(predicted)

|physical properties comment=

|phase=

|phase comment=

|density gplstp=

|density gpcm3nrt=

|density gpcm3nrt 2=

|density gpcm3mp=

|melting point K=

|melting point C=

|melting point F=

|sublimation point K=

|sublimation point C=

|sublimation point F=

|boiling point K=

|boiling point C=

|boiling point F=

|triple point K=

|triple point kPa=

|critical point K=

|critical point MPa=

|heat fusion=

|heat fusion 2=

|heat vaporization=

|heat capacity=

|vapor pressure 1=

|vapor pressure 10=

|vapor pressure 100=

|vapor pressure 1 k=

|vapor pressure 10 k=

|vapor pressure 100 k=

|vapor pressure comment=

|electronegativity=

|number of ionization energies=1

|ionization energy 1=429.4 (predicted)

|ionization energy 2=

|ionization energy 3=

|atomic radius=

|atomic radius calculated=

|covalent radius=

|crystal structure=

|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= 54500-70-8

|naming=IUPAC systematic element name

}}

{{Infobox element/element navigation|symbol=Ubu|Main isotopes table=no}}

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