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Chemistry


Curium

Name: Curium
Symbol: Cm
Number of Energy Levels: 7
Electrons on the outer energy level: 2
Atomic number: 96
Atomic Mass: 247 Amu (Atomic Mass Units)
Protons/Electrons: 96
Neutrons: 151
Density: 13.51 g/cm3
Classification: Rare Earth

Curium | Chemical elements

Curium was discovered in 1944 by G. T. Seaborg. Its name derives from the name of Pierre and Marie Curie. Curium’s melting point is at 1340.0 °C (1613.15 K, 2444.0 °F) and its boiling point is at 3110 °C (3383 K ​, ​5630 °F).

Top 13 interesting facts about Curium

  1. Curium is a man-made radioactive element.
  2. Curium is hard and dense.
  3. Curium has a silvery color.
  4. Curium has high melting and boiling points for an actinide.
  5. Curium oxidizes in the air.
  6. Curium has similar physical and chemical properties with gadolinium.
  7. Curium is produced by bombarding uranium or plutonium with neutrons.
  8. Curium is produced in small quantities for research purposes.
  9. Curium is used in production of heavier actinides.
  10. Curium is also use in the alpha particle X-ray spectrometer installed on many rovers that explore space.
  11. Curium has no stable isotopes.
  12. Curium-247 is the longest-lived isotope, with a half-life of 15.6 million years.
  13. Curium must be handled with care in specially designed environments.

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