Periodic table of the elements
ThalliumLeadBismuth
82
Pb
Lead
207.2
2
8
18
32
18
4
82
Pb
Lead
207.2
2
8
18
32
18
4
General
NameLead
SymbolPb
Number82
Chemical seriesOther metals
Group / Period14 / 6
Blockp-block
CAS registry number7439-92-1

Physical properties
Statesolid
Density11.34 g/cm3
Melting point600.61 K (327.46 °C, 621.43 °F)
Boiling point2022 K (1749 °C, 3180 °F)
Critical point

Atomic properties
Atomic Weight207.2 g/mol
Crystal structurecubic face centered
Electronegativity2.33
Atomic radius180 pm
Atomic radius (calculated)154 pm
Electron configuration[Xe] 4f14 5d10 6s2 6p2
Electrons per shell2, 8, 18, 32, 18, 4
Number of protons82
Number of neutrons125

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Periodic table of the elements
ThalliumLeadBismuth