Copper is Cu in the Mendelev table of elements and has wide uses. We can even find it naturally in our bodies. It is known for its very high thermal and electrical conductivity. In 4000 BC copper was the first metal to be melted and cast into a shape. Copper mixed with tin is called Bronze. We see copper as an additive in jewelry. In its pure form we see it in electrical wires, plumbing pipes and some construction material.