Iodine vs Lead

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PropertyI IodinePb Lead
Atomic number5382
SymbolIPb
NameIodineLead
Categoryhalogenpost-transition-metal
Standard Atomic Weight126.90447 u207.2 u
Period56
Group1714
Blockpp
Phase at STPsolidsolid
Electron configuration[Kr]5s24d105p5[Xe]6s24f145d106p2
Oxidation states[-1, 1, 2, 3, 4, 5, 6, 7][-4, -2, -1, 0, 1, 2, 3, 4]
Electronegativity (Pauling)2.662.33
Electron affinity3.059 eV0.364 eV
Density4930 kg/m³1.134200e+4 kg/m³
Melting point113.7 °C327.46 °C
Boiling point184.4 °C1748.85 °C
Discovery year18112021