About 875,000 results
  1. Copper - Wikipedia

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

  3. Copper Facts – Cu or Atomic Number 29 - Science Notes and …

  4. Copper Facts: Chemical and Physical Properties - ThoughtCo

  5. Copper (Cu) - Periodic Table

  6. Periodic Table of Elements: Los Alamos National Laboratory

  7. Copper - The Chemical Elements

  8. WebElements Periodic Table » Copper » the essentials

  9. Copper (Cu) - Chemical Elements.com

  10. Copper - Periodic Table