Neptunium vs Livermorium

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PropertyNp NeptuniumLv Livermorium
Atomic number93116
SymbolNpLv
NameNeptuniumLivermorium
Categoryactinidepost-transition-metal
Standard Atomic Weight237 u293 u
Period77
GroupN/A16
Blocksp
Phase at STPsolidsolid
Electron configuration[Rn]7s25f46d1[Rn] 7s2 7p4 5f14 6d10(predicted)
Oxidation states[2, 3, 4, 5, 6, 7][-2, 2, 4]
Electronegativity (Pauling)1.36N/A
Electron affinity0.48 eV0.7 eV
Density2.025000e+4 kg/m³1.290000e+4 kg/m³
Melting point643.85 °C506.85 °C
Boiling point3901.85 °C861.85 °C
Discovery year19402000