• Name: Cobalt

  • Symbol: Co

  • Number of Energy Levels: 4

  • Electrons on the outer energy level: 2

  • Atomic Number: 27

  • Atomic Mass: 58.9332 Amu

  • Protons / Electrons: 27

  • Neutrons: 32

  • Density: 8.9 g/cm3

  • Classification: Transition Metal

Top 9 interesting facts about Cobalt

  • Cobalt was discovered in 1737 by George Brandt. Its name derives from German word "kobold" which means "evil spirit".
  • Cobalt's melting point is at 1495.0 C (1768.15 K, 2723.0 F) and boiling point at 2870.0 C (3143.15 K, 5198.0 F).
  • Elemental cobalt is hard and silver/grey metal.
  • Cobalt occurs naturally only in chemical compounds.
  • Cobalt is primary used in producing magnetic high-strength alloys.
  • Cobalt blue is used in jewelry, paint, and glass and ceramic industries.
  • Congo and Zambia are the largest producers of cobalt in the world.
  • Cobalt has eight important isotopes, 59-Co is the only one stable isotope and 60-Co is a very important radioisotope.
  • Cobalt is an essential element in vitamin B-12 and an important nutrient for bacteria.