What is O2 and O3?

1 Answer
Feb 27, 2017

Answer:

Well, these are oxygen molecules........or oxygen allotropes........

Explanation:

#O_2# is the oxygen you are breathing now, and comprises some #20.95%# of the atmosphere..........

..........under exceptional circumstances, oxygen can exist as the ozone molecule, #O_3#, a bent molecule whose Lewis structure we would represent as #""^(-)O-O^(+)=O#. This site reports that ozone comprises #"0.6 ppm"# of the atmosphere.