• Name: Molybdenum

  • Symbol: Mo

  • Number of Energy Levels: 5

  • Electrons on the outer energy level: 1

  • Atomic Number: 42

  • Atomic Mass: 95.94 Amu

  • Protons / Electrons: 42

  • Neutrons: 54

  • Density: 10.22 g/cm3

  • Classification: Transition Metal

Top 16 interesting facts about Molybdenum

  • Molybdenum was discovered in 1778 by Carl Wilhelm Scheele. Molybdenum's name derives from the Greek word "molubdos" which means "lead".
  • Molybdenum's melting point is at 2617.0 C (2890.15 K, 4742.6 F) and its boiling point is at 4612.0 C (4885.15 K, 8333.6 F).
  • Molybdenum is a silvery metal.
  • Molybdenum ores were confused with lead ores.
  • Molybdenum was first isolated three years after it was discovered, in 1781 by Peter Jacob Hjelm.
  • Molybdenum does not occur freely in nature.
  • Molybdenum is the 54th most abundant element in Earth's crust, 25th in oceans and 42nd in universe.
  • Molybdenum has the sixth highest melting point among all chemical elements.
  • 80% of molybdenum production is used in steel alloys and super-alloys.
  • Molybdenum is a required element in all organisms (except some bacteria).
  • There are 35 known isotopes of molybdenum, seven of them occur naturally (92-Mo, 94-Mo, 95-Mo, 96-Mo, 97-Mo, 98-Mo, and 100-Mo), and only one of these seven isotopes (100-Mo) is unstable.
  • 98-Mo is the most abundant isotope of molybdenum.
  • The three largest producers of molybdenum are China, the USA, and Chile.
  • A quarter million tonnes of molybdenum are produced annually.
  • Molybdenum powder is used as fertilizer.
  • Molybdenum dust generated by mining is toxic.