Lanthanum vs Bismuth

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PropertyLa LanthanumBi Bismuth
Atomic number5783
SymbolLaBi
NameLanthanumBismuth
Categorylanthanidepost-transition-metal
Standard Atomic Weight138.90547 u208.9804 u
Period66
GroupN/A15
Blocksp
Phase at STPsolidsolid
Electron configuration[Xe]6s25d1[Xe]6s24f145d106p3
Oxidation states[0, 1, 2, 3][-3, -2, -1, 0, 1, 2, 3, 4, 5]
Electronegativity (Pauling)1.12.02
Electron affinity0.47 eV0.942 eV
Density6150 kg/m³9807 kg/m³
Melting point917.85 °C271.4 °C
Boiling point3463.85 °C1563.85 °C
Discovery year18391753