ESL Saigon logo



Name: Copper
Symbol: Cu
Number of Energy Levels: 4
Electrons on the outer energy level: 1
Atomic number: 29
Atomic Mass: 63.546 Amu (Atomic Mass Units)
Protons/Electrons: 29
Neutrons: 35
Density: 8.96 g/cm3
Classification: Transition Metal

Copper | Chemical elements

Copper is known from ancient times. Its name derives from the Latin word "Cuprum". Copper’s melting point is at 1083.0 °C (1356.15 K, 1981.4 °F) and its boiling point is at 2567.0 °C (2840.15 K, 4652.6 °F).

Top 11 interesting facts and information about copper

  1. Copper is a reddish-orange metal, very malleable and soft.
  2. Copper has a very high thermal and electrical conductivity being used as a heat and electricity conductor and as a part of various alloys.
  3. Copper has 29 isotopes, six of them being well known 61-Cu, 62-Cu, 63-Cu, 64-Cu, 65-Cu, and 67-Cu but only 63-Cu and 65-Cu are stable.
  4. Copper was mainly mined in Cyprus and it was called metal of Cyprus or cyprium; later its name became cuprum in Latin language.
  5. Copper is essential to all living organisms.
  6. There are only for metals that have a color other than grey/silver. Copper is one of them.
  7. Copper doesn’t react with water but it reacts with oxygen from the air to form a dark-brown protective layer preventing it from further oxidation.
  8. Chile is the largest producer of copper and the United States is rate as the second world producer of copper.
  9. Recycled copper is the major source of copper in modern world although Earth contains large amounts of copper but they are not economically viable.
  10. Copper is use in jewelry industry and it is an important constituent of gold alloys.
  11. Copper’s major applications are: electrical wire, roofing, plumbing, and different kinds of machinery.

Back to index