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Element Description

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
Density 19.32g/cm3 Yield Point 500psi
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
Electronegativity 2.4Pauling's Ionization Potential 9.18cV


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