Isotopes | Compounds | Main Page
Lead
Electron Configuration 2,8,18,32,18,4
Electron Configuration [Xe]] 4f14 5d10 6s2 6p2
Electronegativity 2.33
Enthalpy of Fusion 5.12 kJ mol-1
Enthalpy of Vaporisation 177.8 kJ mol-1
Heat Capacity 26.650 J mol-1 K-1
Thermal Conductivity 35.3 W m-1 K-1
Thermal Expansion 28.9 μm m-1 K-1
Magnetic ordering Diamagnetic
Electrical resistivity 208 Ω m
Speed of sound 1190 m s-1
Young's modulus 16 GPa
Shear modulus 1190 GPa
Bulk modulus 46 GPa
Poisson ratio 0.44
Mohs hardness 1.5
Brinell hardness 38.3 MPa
Atomic Radii
Atomic Radius 180 pm
Bohr Radius 154 pm
Covalent Radius 147 pm
Van der Waals 202 pm
Oxidation States
Main Pb+2, Pb+4
Other
Ionisation Energies (kJ mol-1) show graph
M - M+ 715.5
M+ - M2+ 1450.4
M2+ - M3+ 3081.5
M3+ - M4+ 4083
M4+ - M5+ 6640
M5+ - M6+ 8100
M6+ - M7+ 9100
M7+ - M8+ 11800
M8+ - M9+ 13700
M9+ - M10+ 16700
Covalent Bonds (kJ mol-1)
Pb-H 180
Pb-C 130
Pb-O 398
Pb-F 314
Pb-Cl 244
Pb-Pb 100