Tom Skerritt. Biography: Tom Skerritt is probably the best-known actor whose name is never remembered. A rugged outdoors type, Skerritt briefly attended Wayne State University and UCLA before making his film bow in [[Feature~V115961~War Hunt~warhunt]] (1962). His...
The chemical formula for oxygen is O2 and for individual oxygen  atom its symbol is O.   Gases such as oxygen exist as diatomic molecules.
The formula for ozone is O3. It is an allotrope of oxygen, most commonly formed form atmospheric oxygen (O2) on Earth, as in the ozone layer.he formula for ozone is O3. It is an allotrope of oxygen, most commonly formed form atmospheric oxygen (O2) on Earth, as in the ozone layer.