• Name: Oxygen

  • Symbol: N

  • Number of Energy Levels: 2

  • Electrons on the outer energy level: 6

  • Atomic Number: 8

  • Atomic Mass: 15.9994 Amu

  • Protons / Electrons: 8

  • Neutrons: 8

  • Density: 1.429 g/cm3

  • Classification: Non-Metal

Top 16 interesting facts about Oxygen

  • Oxygen is a highly reactive element forming compounds very fast with most of the other elements.
  • Oxygen is the third most abundant element in the universe after Hydrogen and Helium.
  • Oxygen at standard temperature and pressure is a diatomic gas with the formula O2 that is colorless, odorless, and tasteless.
  • Since oxygen is part of the water, it is a major constituent of the mass of living organisms.
  • Oxygen represents 20.8% of the volume of the air.
  • Because oxygen reacts with so many other elements and forms compounds very easy, oxygen is the most abundant element on Earth by mass as part of oxide compounds.
  • Elemental oxygen is produced by plants and different algae and all complex forms of life use it for respiration.
  • Ozone is another form of Oxygen (O3), formed by three atoms of Oxygen, which protects the Earth from ultra-violet radiation emitted by Sun (but not only).
  • Oxygen is produced industrially from liquefied air, electrolysis of water, etc and it is used in steel and plastic production, welding and cutting metals, life support system on aircrafts, etc.
  • Oxygen was discovered by Carl Wilhelm Scheele in 1773.
  • Oxygen condenses at −182.95 °C (−297.31 °F). Liquid Oxygen is a very reactive substance.
  • Oxygen freezes at −218.79 °C (−361.82 °F).
  • Almost 1 percent (0.9%) of the mass of the Sun is Oxygen.
  • Without Oxygen conventional combustion wouldn't be possible.
  • Aurora Borealis is formed by the excited Oxygen from the atmosphere.
  • Oxygen is used in medicine for different therapies.