Statement 1 (S1): Atomicity of an ozone molecule is 3.
Statement 2 (S2): Atomicity is calculated only for the molecules of elements.

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Solution

Atomicity is defined as the total number of atoms in a molecule.
It can be calculated for both molecules of elements and molecules of compounds.
Example- Ozone ( $O_{3}$ ) is a molecule of element. Since, it has 3 oxygen atoms in it, its atomicity is 3.

Moreover, water ( $H_{2} O$ ) is a molecule of compound. Since, it has 2 hydrogen and 1 oxygen atom in it, its atomicity is 3.

Therefore, S1 is true but S2 is false.

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Statement 1 (S1): Atomicity of an ozone molecule is 3. Statement 2 (S2): Atomicity is calculated only for the molecules of elements.

Statement 1 (S1): Atomicity of an ozone molecule is 3.
Statement 2 (S2): Atomicity is calculated only for the molecules of elements.