• Name: Curium

  • Symbol: Cm

  • Number of Energy Levels: 7

  • Electrons on the outer energy level: 2

  • Atomic Number: 96

  • Atomic Mass: 247 Amu

  • Protons / Electrons: 96

  • Neutrons: 151

  • Density: 13.51 g/cm3

  • Classification: Rare Earth

Top 15 interesting facts about Curium

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