• Name: Lawrencium

  • Symbol: Lr

  • Number of Energy Levels: 7

  • Electrons on the outer energy level: 2

  • Atomic Number: 103

  • Atomic Mass: 262 Amu

  • Protons / Electrons: 103

  • Neutrons: 159

  • Density: unknown g/cm3

  • Classification: Rare Earth

Top 10 interesting facts about Lawrencium

  • Lawrencium was discovered in 1961 at Joint Institute for Nuclear Research and Lawrence Berkeley National Laboratory. Lawrencium was named after Ernest Lawrence.
  • Lawrencium's melting point is predicted to be at 1627 C (1900 K, 2961 F) and its boiling point is unknown.
  • Lawrencium is a man-made radioactive metal.
  • Lawrencium can only be produced in particle accelerators in small quantities.
  • Lawrencium has similar chemical and physical properties with lutetium.
  • Lawrencium is predicted to be a silvery metal easily to be oxidized by air.
  • Lawrencium has 12 known isotopes.
  • 266-Lawrencium is the most stable isotope (half-life of 11 hours).
  • 260-Lawrencium is the most used because it can be produced easily (half-life of 2.7 minutes).
  • Lawrencium is the final element of the actinide series.