Gold

Gold is an element that was known to ancient man and has always been prized for its color. It was used as jewelry in prehistoric times, alchemists spent their lives trying to transmute other metals into gold, and it is still one of the most prized metals.

Gold Physical Data

• Density (g/cc): 19.3
• Melting Point (°K): 1337.58
• Boiling Point (°K): 3080
• Appearance: soft, malleable, yellow metal
• Atomic Radius (pm): 146
• Atomic Volume (cc/mol): 10.2
• Covalent Radius (pm): 134
• Ionic Radius: 85 (+3e) 137 (+1e)
• Specific Heat (@20°C J/g mol): 0.129
• Fusion Heat (kJ/mol): 12.68
• Evaporation Heat (kJ/mol): ~340
• Debye Temperature (°K): 170.00
• Pauling Negativity Number: 2.54
• First Ionization Energy (kJ/mol): 889.3
• Oxidation States: 3, 1. The oxidation states -1, +2 and +5 exist but are rare.
• Lattice Structure: Face-Centered Cubic (FCC)
• Lattice Constant (Å): 4.080
• Specific Gravity (20°C): 18.88
• CAS Registry Number: 7440-57-5