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Chemistry


Molybdenum

Name: Molybdenum
Symbol: Mo
Number of Energy Levels: 5
Electrons on the outer energy level: 1
Atomic number: 42
Atomic Mass: 95.94 Amu (Atomic Mass Units)
Protons/Electrons: 42
Neutrons: 54
Density: 10.22 g/cm3
Classification: Transition Metal

Molybdenum | Chemical elements

Molybdenum was discovered in 1778 by Carl Wilhelm Scheele. Molybdenum’s name derives from the Greek word "molubdos" which means "lead". Niobium’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).

Top 14 interesting facts about Molybdenum

  1. Molybdenum is a silvery metal.
  2. Molybdenum ores were confused with lead ores.
  3. Molybdenum was first isolated three years after it was discovered, in 1781 by Peter Jacob Hjelm.
  4. Molybdenum does not occur freely in nature.
  5. Molybdenum is the 54th most abundant element in Earth’s crust, 25th in oceans and 42nd in universe.
  6. Molybdenum has the sixth highest melting point among all chemical elements.
  7. 80% of molybdenum production is used in steel alloys and super-alloys.
  8. Molybdenum is a required element in all organisms (except some bacteria).
  9. 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.
  10. 98-Mo is the most abundant isotope of molybdenum.
  11. The three largest producers of molybdenum are China, the USA, and Chile.
  12. A quarter million tonnes of molybdenum are produced annually.
  13. Molybdenum powder is used as fertilizer.
  14. Molybdenum dust generated by mining is toxic.

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