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Lead Metal Solid
Symbol: Pb
Atomic number: 82
Atomic mass: 207.2
Group: Metal
CAS-number: 7439-92-1
 
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Physical data

Electronic data  Thermal data  Steric data
Shells: 2,8,18,32,18,4
Orbitals: [Xe] 4f14 5d10 6s2 6p2
Electronegativity: 1.6, 1.9
1. Ionization potential: 7.4167 eV
2. Ionization potential: 15.028 eV
3. Ionization potential: 31.943 eV
Oxidation states: 4,2
Electrical conductivity: 0.0481 10^6
Melting point: 327.502 °C
Boiling point: 1740 °C
Specific heat: 0.13 J/gK
Heat of fusion: 4.799 kJ/mol
Heat of vaporization: 177.70 kJ/mol
Thermal conductivity: 0.353 W/cmK
Atomic radius: 1.81 Å
Ionic radius: 1.19 Å ()
Covalent radius: 1.47 Å
Atomic volume: 18.17 cm³/mol
Density (293 K): 11.34 g/cm³
Crystal structure: Cubic: Face centered
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Isotopes

NuclideAbundance [%]MassSpinHalflifeDecay modeDecay tree
202Pb020205.3E04yECView
202Pbm020293.53hITView
203Pb02035/22.162dECView
204Pb1.48203.9730--stable--
204Pbm020491.12hITView
205Pb02055/21.5E07yECView
206Pb23.6205.9740--stable--
207Pb22.6206.9761/2--stable--
208Pb52.3207.9770--stable--
209Pb02099/23.25hBeta-View
210Pb0210022.3yBeta-,AlphaView
211Pb02119/236.1mBeta-View
212Pb0212010.64hBeta-View
214Pb0214027mBeta-View
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Other info

Name origin:Anglo-Saxon: lead; symbol from Latin: plumbum.
Description:Very soft, highly malleable and ductile, blue-white shiny metal.
Discovered by:Known to the ancients
Year:--
Place:Unknown
Sources:Found most often in ores called galena or lead sulfide (PbS). Some is found in its native state.
Use(s):Used in solder, shielding against radiation and in batteries.
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