Lead vs Bismuth

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PropertyPb LeadBi Bismuth
Atomic number8283
SymbolPbBi
NameLeadBismuth
Categorypost-transition-metalpost-transition-metal
Standard Atomic Weight207.2 u208.9804 u
Period66
Group1415
Blockpp
Phase at STPsolidsolid
Electron configuration[Xe]6s24f145d106p2[Xe]6s24f145d106p3
Oxidation states[-4, -2, -1, 0, 1, 2, 3, 4][-3, -2, -1, 0, 1, 2, 3, 4, 5]
Electronegativity (Pauling)2.332.02
Electron affinity0.364 eV0.942 eV
Density1.134200e+4 kg/m³9807 kg/m³
Melting point327.46 °C271.4 °C
Boiling point1748.85 °C1563.85 °C
Discovery year20211753