Atmospheric Chemistry: Understanding Ozone


Ozone (26k jpeg)
  • first discovered in 1839 by German scientist Christian Friedrich Schonbein
  • is a pale blue, relatively unstable molecule made up of three oxygen atoms
  • is angular, polar, and diamagnetic. Both oxygen bond lengths (1.28 angstroms) are identical
  • is formed from molecular oxygen (O2) by ultraviolet and extreme ultraviolet photolysis followed by recombination of atomic oxygen (O) with O2
  • may also be formed by passing an electrical discharge through gaseous oxygen. It is characterized by a unique odor that is often noticed during electrical storms and in the vicinity of electrical equipment.
  • In fact, the term ozone is derived from the Greek word ozein which means "to smell."
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