Lanthanum vs Lead

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PropertyLa LanthanumPb Lead
Atomic number5782
SymbolLaPb
NameLanthanumLead
Categorylanthanidepost-transition-metal
Standard Atomic Weight138.90547 u207.2 u
Period66
GroupN/A14
Blocksp
Phase at STPsolidsolid
Electron configuration[Xe]6s25d1[Xe]6s24f145d106p2
Oxidation states[0, 1, 2, 3][-4, -2, -1, 0, 1, 2, 3, 4]
Electronegativity (Pauling)1.12.33
Electron affinity0.47 eV0.364 eV
Density6150 kg/m³1.134200e+4 kg/m³
Melting point917.85 °C327.46 °C
Boiling point3463.85 °C1748.85 °C
Discovery year18392021