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  2. Copper - Wikipedia

    • Copper is a chemical element; it has symbol Cu (from Latin cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal all… See more

    AppearanceRed-orange metallic luster
    Phase at STPsolid
    Melting point1357.77 K (1084.62 °C, 1984.32 °F)
    Boiling point2835 K (2562 °C, 4643 °F)
    Etymology

    In the Roman era, copper was mined principally on Cyprus, the origin of the name of the metal, from aes cyprium (metal of Cyprus), later corrupted to cuprum (Latin). Coper (Old English) and copper were derived fro… See more

    Characteristics

    Copper, silver, and gold are in group 11 of the periodic table; these three metals have one s-orbital electron on top of a filled d-electron shell and are characterized by high ductility, and electrical and thermal conductivit… See more

     
  1. Copper | Uses, Properties, & Facts | Britannica

     
  2. Copper - Element information, properties and uses | Periodic Table

  3. Copper | Cu | CID 23978 - PubChem

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