Germanium vs Bismuth

PropertyGe GermaniumBi Bismuth
Atomic number3283
SymbolGeBi
NameGermaniumBismuth
Categorymetalloidpost-transition-metal
Standard Atomic Weight72.63 u208.9804 u
Period46
Group1415
Blockpp
Phase at STPsolidsolid
Electron configuration[Ar]4s23d104p2[Xe]6s24f145d106p3
Oxidation states[-4, -3, -2, -1, 0, 1, 2, 3, 4][-3, -2, -1, 0, 1, 2, 3, 4, 5]
Electronegativity (Pauling)2.012.02
Electron affinity1.232 eV0.942 eV
Density5323.4 kg/m³9807 kg/m³
Melting point938.25 °C271.4 °C
Boiling point2832.85 °C1563.85 °C
Discovery year18861753