Name       : Copper 
Symbol     : Cu
Atomic #   : 29
Atom weight: 63.546
Melting P. : 1083
Boiling P. : 2567
Oxidation  : +1, +2
Pronounced : KOP-er
From       : Latin cuprum, "from the island of Cyprus"
Identified : Prehistoric origin
Appearance : Malleable, ductile, reddish-brown metal
Note       : We call policeman a cop or copper because their uniforms'
             buttons are used to be copper

[Properties]

  Copper is commonly described as a reddish-brown, malleable, and ductile
metal that is one of the best conductors of heat and electricity. It
resists corrosion from most acids (hot nitric acid and concentrated
sulfuric acid are exceptions). Since it also resists the action of air,
moisture, and even seawater, copper is ideal material for making coins.
  Copper that is exposed to natural elements for extended period of time
develops a blue-green coating, or patina. This is actually copper carbonate
- a natural protective coating that discourages further wear and corrosion.
  Copper heads the list of Group-IB elements on the periodic table. It is
in good company with two other well-known metals, silver (Ag) and gold (Au).
