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Element Details


Element Description

One of the oldest known metals, lead is bluish-white, lustrous, and soft. It is highly malleable, ductile, insoluble in water, and noncombustible. Lead is a poor electrical conductor and a very effective sound absorber. It is relatively impenetrable to radiation, making it an effective shield of X-ray equipment and nuclear reactors. Lead is very resistant to corrosion and is often used to contain corrosive liquids.

Property Name Property Value Property Name Property Value
Atomic Code (82Pb207.2) First Ionization Energy 171K-cal/g-mole
CAS # 7439-92-1 Electronegativity 1.8Pauling's
Covalent Radius 1.47Angstroms
Melting Point 327.5°C Brinell Hardness (cast) 4.2
Boiling Point 1749°C Thermal Expansion 29.3ppm/°C
Density 11.34g/cm3 Electrical Resistivity @ 20°C 20.6µΩ-cm
Themal Conductivity @ 0°C 0.083cal/cm2/cm/s/°C Crystal Structure Cubic, face centered
Specific Heat @ 0°C 0.0306cal/g°C Vapor Pressure @ 1167°C 10.0mmHg
Latent Heat of Fusion 5.86k-cal/g-atom Magnetic Susceptibility 0.12x10-6cgs
Latent Heat of Vaporization 203cal/g Tensile Strength 3000psi
Atomic Volume 18.3W/D

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