Americium vs Livermorium

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PropertyAm AmericiumLv Livermorium
Atomic number95116
SymbolAmLv
NameAmericiumLivermorium
Categoryactinidepost-transition-metal
Standard Atomic Weight243 u293 u
Period77
GroupN/A16
Blocksp
Phase at STPsolidsolid
Electron configuration[Rn]7s25f7[Rn] 7s2 7p4 5f14 6d10(predicted)
Oxidation states[2, 3, 4, 5, 6, 7][-2, 2, 4]
Electronegativity (Pauling)1.3N/A
Electron affinity0.1 eV0.7 eV
Density1.369000e+4 kg/m³1.290000e+4 kg/m³
Melting point1175.85 °C506.85 °C
Boiling point2010.85 °C861.85 °C
Discovery year19442000