Cu

copper 29 cu 63.546 known since ancint times copper is found in foods lava volcanic activites its brown when it gets old its green coppers found in cable wires and water systems used in buildings anyhttp://answers.yahoo.com/question/index?qid=20060719154443AA7lbbQ other diffrent forms of an element http://capscience.wikispaces.com/page/edit/Cu?responseToken=7eeeb4ba8d27b47713299b2162603121 webelements.com