What atoms make an ozone molecule?

Answer 1

Ozone is a molecule composed of three oxygen atoms. The chemical symbol of ozone is O3 as the symbol of oxygen atoms is O.

Most ozone found in our atmosphere is formed by an interaction between oxygen molecules and ultraviolet radiation emitted by the sun. (Oxygen molecules make up about 21% of all gases in the earth's atmosphere; they consist of two atoms of oxygen and are therefore labeled O2).

When ultraviolet (UV) radiation hits an oxygen molecule, it may cause the molecule to break apart into single atoms of oxygen (O2 + UV -> O + O). These atoms are very reactive, and a single oxygen atom can combine with a molecule of oxygen to form ozone (O2+ O -> O3).

The individual ozone molecules make up what we call the ozone layer. It is not, however, an especially thick layer there are usually less than three ozone molecules for every ten million molecules of air. That is why ozone is known as a trace gas, meaning that only trace (very small) amounts are present. We are fortunate that these small amounts make a big difference.

Answer 2

An ozone molecule is made up of three oxygen atoms.