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Probably the first pure metal known to man, gold has been highly valued from earliest times. It is a yellow, malleable, ductile, and soft metal, often alloyed to give it more strength. Gold is a good conductor of heat and electricity and is resistant to oxidation and most reagents. It is an excellent reflector of infrared and is extremely light reflective. The freezing point of gold serves as a calibration point for the International Temperature Scales.
|Property Name||Property Value||Property Name||Property Value|
|Atomic Code||(79Au196.96654)||Covalent Radius||1.34Angstroms|
|CAS #||7440-57-5||Vickers Hardness||25|
|Thermal Expansivity @ 0-100°C||14.16x10-6K-1|
|Melting Point||1064.2°C||Electrical Resistivity @ 0°C||2.125µΩ-cm|
|Boiling Point||2808°C||Crystal Structure||Cubic, face centered|
|Themal Conductivity @ 0°C||0.743cal/cm2/cm/s/°C||Thermal Neutron Cross Section||98.8 Gauss/atom|
|Specific Heat @ 25°C||0.0312cal/g°C||Poisson Ratio||0.42|
|Heat of Fusion||3.03k-cal/g-atom||Young's Modulus (60% cold worked)||11.2x106psi|
|Heat of Vaporization||81.8k-cal/g-atom||Magnetic Susceptibility||-0.15x10-6emu/mole|
|Atomic Volume||10.2W/D||Tensile Strength (annealed)||18,000psi|
|First Ionization Energy||213K-cal/g-mole||Hall Constant||6.87x10-13Ω-cm/gauss|