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Chemistry


Lawrencium

Name: Lawrencium
Symbol: Lr
Number of Energy Levels: 7
Electrons on the outer energy level: 2
Atomic number: 103
Atomic Mass: 262 Amu (Atomic Mass Units)
Protons/Electrons: 103
Neutrons: 159
Density: unknown g/cm3
Classification: Rare Earth

Lawrencium | Chemical elements

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.

Top 8 interesting facts about Lawrencium

  1. Lawrencium is a man-made radioactive metal.
  2. Lawrencium can only be produced in particle accelerators in small quantities.
  3. Lawrencium has similar chemical and physical properties with lutetium.
  4. Lawrencium is predicted to be a silvery metal easily to be oxidized by air.
  5. Lawrencium has 12 known isotopes.
  6. 266-Lawrencium is the most stable isotope (half-life of 11 hours).
  7. 260-Lawrencium is the most used because it can be produced easily (half-life of 2.7 minutes).
  8. Lawrencium is the final element of the actinide series.

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