Lanthanum vs Nihonium

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PropertyLa LanthanumNh Nihonium
Atomic number57113
SymbolLaNh
NameLanthanumNihonium
Categorylanthanidepost-transition-metal
Standard Atomic Weight138.90547 u286 u
Period67
GroupN/A13
Blocksp
Phase at STPsolidsolid
Electron configuration[Xe]6s25d1[Rn] 5f14 6d10 7s2 7p1(predicted)
Oxidation states[0, 1, 2, 3]N/A
Electronegativity (Pauling)1.1N/A
Electron affinity0.47 eV0.6 eV
Density6150 kg/m³1.600000e+4 kg/m³
Melting point917.85 °C426.85 °C
Boiling point3463.85 °C1156.85 °C
Discovery year18392004