# What are the two forms of oxygen found in the atmosphere?

Question.
What are the two forms of oxygen found in the atmosphere?

Solution:
The two forms of oxygen found in the atmosphere are:
(i) Diatomic molecular form with chemical formula $\mathrm{O}_{2}$.
(ii) Triatomic molecular form with chemical formula $\mathrm{O}_{3}$ known as ozone.