Its atomic number is 29 and atomic weight 63.54. Its chemical symbol is Cu which is an abbreviation of its Latin name, cuprum. Copper's most notable quality is its electrical conductivity which is far above that of other base metals and iron. Only silver marginally exceeds it. Copper's thermal conductivity is also greater than other metals except again for silver.
Copper has very good resistance to corrosion.
Exposed to the atmosphere over a long time, it will, through oxidation, form a light green patina on its surface which protects indefinitely the metal underneath. Copper is easily worked and soldered, which enhances its suitability for electrical applications and piping. Copper is also well know for its alloys. Bronze is harder and stronger than unalloyed copper. The term bronze is now used to cover copper alloys in which metals other than zinc predominate, ie.