• Name: Osmium

  • Symbol: Os

  • Number of Energy Levels: 6

  • Electrons on the outer energy level: 2

  • Atomic Number: 76

  • Atomic Mass: 190.23 Amu

  • Protons / Electrons: 76

  • Neutrons: 114

  • Density: 22.04 g/cm3

  • Classification: Transition Metal

Top 15 interesting facts about Osmium

  • Osmium was discovered in 1803 by Smithson Tenant. Its name derives from the Greek word "Osme" which means "odor".
  • Osmium's melting point is at 3045.0 C (3318.15 K, 5513.0 F) and its boiling point is at 5027.0 C (5300.15 K, 9080.6 F).
  • Osmium is a transition metal that is hard and brittle.
  • Osmium's color is bluish-white.
  • Osmium is the densest naturally occurring element.
  • Osmium is lustrous even when exposed to high temperatures.
  • Osmium has a very low compressibility.
  • Osmium is very hard to be worked.
  • Elemental osmium is very volatile and its compounds are very toxic.
  • Osmium is the least abundant element in the Earth's crust.
  • Osmium can be found uncombined in nature and in natural alloys.
  • Osmium is a byproduct of nickel and copper mining.
  • The largest deposits of osmium are found in South Africa, Russia, and Canada.
  • Osmium has six stable isotopes: 184-Os, 187-Os, 188-Os, 189-Os, 190-Os, and 192-Os (the most abundant).
  • Osmium is used in the tips of fountain pens, instrument pivots, electrical contacts, fingerprint detection, in electron microscopy, as a strong oxidant, in studies of biological materials, and few other very niche applications.