Q. 2 B3.5( 15 Votes )

Give a scientific reason for the following

In the atmosphere, Oxygen is available as O2 but not as O.

Answer :

Oxygen has electronic configuration 2, 6. The outer most shell of oxygen has 6 electrons so its valency is 2. It wants to accept two electrons to complete its octet to get stability. So it combines with another oxygen atom to complete its octet. In O2 molecule, both O atoms have a complete octet. So O2 is more stable than O atom. Hence Oxygen is available as O2 in the atmosphere.


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