Antimony vs Lead

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PropertySb AntimonyPb Lead
Atomic number5182
SymbolSbPb
NameAntimonyLead
Categorymetalloidpost-transition-metal
Standard Atomic Weight121.76 u207.2 u
Period56
Group1514
Blockpp
Phase at STPsolidsolid
Electron configuration[Kr]5s24d105p3[Xe]6s24f145d106p2
Oxidation states[-3, -2, -1, 0, 1, 2, 3, 4, 5][-4, -2, -1, 0, 1, 2, 3, 4]
Electronegativity (Pauling)2.052.33
Electron affinity1.07 eV0.364 eV
Density6685 kg/m³1.134200e+4 kg/m³
Melting point630.63 °C327.46 °C
Boiling point1586.85 °C1748.85 °C
Discovery year17072021