ESL Saigon logo

Chemistry


Cerium

Name: Cerium
Symbol: Ce
Number of Energy Levels: 6
Electrons on the outer energy level: 2
Atomic number: 58
Atomic Mass: 140.116 Amu (Atomic Mass Units)
Protons/Electrons: 58
Neutrons: 82
Density: 6.773 g/cm3
Classification: Rare Earth

Cerium | Chemical elements

Cerium was discovered in 1803 by Wilhelm von Hisinger, Martin Heinrich Klaproth, and Jons Jakob Berzelius. Its name derives from the word "Ceres" which is a dwarf planet and it is the name of the Roman goddess of agriculture. Cerium’s melting point is at 795.0 °C (1068.15 K, 1463.0 °F) and its boiling point is at 3257.0 °C (3530.15 K, 5894.6 °F).

Top 21 interesting facts about Cerium

  1. Cerium is a soft, malleable, and ductile metal.
  2. Cerium has a silvery color.
  3. Cerium oxidizes in the air.
  4. Cerium reacts with water.
  5. Cerium metal is highly pyrophoric (it burns when scratched).
  6. Cerium is the most abundant among the Rare Earth elements.
  7. Cerium is mostly found in monazite and bastnasite.
  8. Cerium has the third longest liquid range of all elements.
  9. Cerium has four naturally occurring isotopes: 140-Ce (more than 88% of Earth’s cerium), 142-Ce, 138-Ce, and 136-Ce.
  10. Only 140-Ce is stable.
  11. Cerium is used as catalytic converter and fuel additive in automotive industry.
  12. Cerium oxide is used in self cleaning ovens as a hydrocarbon catalyst and as an agent for precision polishing optics.
  13. Cerium compounds are important components in glass production.
  14. Cerium is used in TV screens and fluorescent lamps.
  15. Cerium is used in various aluminum and iron alloys.
  16. Cerium alloys are used in permanent magnets.
  17. An average size human body contains 40 milligrams of cerium.
  18. Cerium salts can stimulate metabolism.
  19. Cerium accumulates in bones (like calcium does).
  20. Cerium has a low to moderate toxicity.
  21. Cerium is more dangerous to aquatic organism than it is to humans.

Back to index