• Name: Gadolinium

  • Symbol: Gd

  • Number of Energy Levels: 6

  • Electrons on the outer energy level: 2

  • Atomic Number: 64

  • Atomic Mass: 157.25 Amu

  • Protons / Electrons: 64

  • Neutrons: 93

  • Density: 7.895 g/cm3

  • Classification: Rare Earth

Top 11 interesting facts about Gadolinium

  • Gadolinium was discovered in 1880 by Jean de Marignac. Its name derives from the name of the mineral "gadolinite".
  • Gadolinium's melting point is at 1311.0 C (1584.15 K, 2391.8 F) and its boiling point is at 3233.0 C (3506.15 K, 5851.4 F).
  • Gadolinium is a silvery-white rare-earth metal.
  • Gadolinium is ductile and malleable.
  • Gadolinium is not found freely in nature but in different salts.
  • Gadolinium is ferromagnetic below 68°F (20°C) and paramagnetic above 68°F.
  • Metallic gadolinium is relatively stable in dry air (in moist air it forms a layer of gadolinium oxide).
  • Six stable isotopes of gadolinium are known: 154-Gd, 155-Gd, 156-Gd, 157-Gd, 158-Gd (the most abundant), and 160-Gd.
  • Gadolinium is produced from the minerals monazite and bastnasite.
  • Gadolinium is used in metallurgy in iron and chromium alloys, to target tumors in neutron therapy, in shielding nuclear reactors, in nuclear marine propulsion, in imaging, X-ray systems, in fuel cells, and many other specialized applications.
  • Gadolinium has no known biological role and as a free ion it is considered toxic.