Copper is a transition metal, one of the 30 elements that lie between Groups 2 and 13 in the periodic table. Its atomic number is 29, its atomic mass is 63.546, and its chemical symbol is Cu

Properties

Copper is a fairly soft, reddish brown metal that is quite ductile. It is one of the best conductors of heat and electricity of all elements. Its melting point is 1,982°F (1,083°C), its boiling point is 4,703°F (2,595°C), and its density is 8.96 grams per cubic centimeter.

Copper is a moderately reactive metal that dissolves in most acids and alkalis. One of its most interesting properties is its tendency to react in moist air with water and carbon dioxide to form hydrated copper carbonate [Cu₂(OH)₂CO₃]. Hydrated copper carbonate has a beautiful greenish color that accounts for the patina that develops over time on buildings and other structures coated with copper...