• Name: Meitnerium

  • Symbol: Mt

  • Number of Energy Levels: 7

  • Electrons on the outer energy level: 2

  • Atomic Number: 109

  • Atomic Mass: 278.0 Amu

  • Protons / Electrons: 109

  • Neutrons: 157

  • Density: 37.4 g/cm3

  • Classification: Transition Metal

Top 10 interesting facts about Meitnerium

  • Meitnerium was discovered in 1982 at the research center GSI Helmholtz Centre for Heavy Ion Research. Meitnerium was named after Lise Meitner, an Austrian physicist who is a co-discoverer of protactinium and one of the discoverers of nuclear fission.
  • Meitnerium's melting and boiling points are unknown.
  • Meitnerium is a synthetic element not found in nature.
  • Meitnerium is very radioactive.
  • Meitnerium is expected to be solid, paramagnetic, and very heavy under normal conditions.
  • Meitnerium was first created in Germany in 1982.
  • Meitnerium is believed to behave as the heavier homologue to iridium.
  • Meitnerium has 15 known isotopes (not all confirmed) with atomic masses from 265 to 279.
  • Meitnerium's most stable isotope is meitnerium-278 and it has a half-life of 7.6 seconds.
  • Meinterium is the only one element that might have the oxidation state +9.