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Name: Rhenium
Symbol: Re
Number of Energy Levels: 6
Electrons on the outer energy level: 2
Atomic number: 75
Atomic Mass: 186.207 Amu (Atomic Mass Units)
Protons/Electrons: 75
Neutrons: 111
Density: 21.02 g/cm3
Classification: Transition Metal

Rhenium | Chemical elements

Rhenium was discovered in 1925 by Walter Noddack. Its name derives from the word "Rhines" which is a river in Germany. Rhenium’s melting point is at 3180.0 °C (3453.15 K, 5756.0 °F) and its boiling point is at 5627.0 °C (5900.15 K, 10160.6 °F).

Top 19 interesting facts about Rhenium

  1. Rhenium is a silvery-white, heavy transition metal.
  2. Rhenium is one of the rarest elements in the Earth’s crust.
  3. Rhenium has the third highest melting point and the highest boiling point.
  4. Rhenium is the forth densest element.
  5. Rhenium has similar chemical properties with manganese and technetium.
  6. Rhenium is obtained as a byproduct of molybdenum and copper.
  7. Rhenium improves tungsten’s properties.
  8. Rhenium is the last stable element that was discovered.
  9. Rhenium is a very expensive metal due to its low availability.
  10. Rhenium has a very high military importance.
  11. Rhenium has only one stable isotope rhenium-185.
  12. Rhenium was never found freely in nature.
  13. Rhenium is extracted from the mineral molybdenite.
  14. Chile is the main producer of rhenium followed by the USA, Peru, and Poland.
  15. Rhenium is used in jet engine parts in military industry (70% of total production).
  16. Rhenium is used in superalloys to improve creep strength (superalloys are used in jet engines and industrial gas turbines engines).
  17. Rhenium rhenium-platinum alloy) is also used as a catalyst.
  18. Rhenium-188 and rhenium-186 are used in medicine for liver cancer treatment.
  19. Rhenium is not known to be toxic or hazardous due to its use in small amounts.

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