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Known since ancient times, it is believed man was separating silver from lead as early as 3000 B.C. Pure silver is a lustrous, white metal, more ductile and malleable than any other metal, excluding gold. Silver is the best reflector of visible light known until air causes it to tarnish. In pure air and in water, it is stable. Silver has the highest electrical and thermal conductivity of all metals.
Melting Point1414°CBoiling Point2210°C
Density10.5g/cm3Themal Conductivity @ 0°C1.0cal/cm2/cm/s/°C
Specific Heat @ 25°C0.056cal/g°CHeat of Fusion25cal/g
Heat of Vaporization565cal/gAtomic Volume10.3W/D
First Ionization Energy17.5K-cal/g-moleElectronegativity1.9Pauling's
Covalent Radius1.34AngstromsElectrical Resistivity @ 20°C1.63µΩ-cm
Crystal StructureCubic, face centeredLattice Constant4.086
Thermionic Work Function3.09-4.31eVModulus of Elasticity @ 30°C10.6x106psi
Tensile Strength (annealed)25,000psi