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Question

Classify each of the following on the basis of their atomicity

(a) F2 (b) O3 (c) S8 (d) He (e) P4 (f) Mg (g) N2

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Solution

The atomicity of a molecule is defined as the total number of atoms present in that molecule. On the basis of atomicity, molecules can be classified as:
1. Monoatomic molecules - Contain one atom
2. Diatomic molecules - Contain two atoms
3. Triatomic molecules - Contain three atoms
4. Polyatomic molecules - Contain more than three atoms

Therefore, the molecules given in the question can be classified as follows:
Monatomic Diatomic Triatomic Polyatomic
He, Mg F2 , N2 O3 S8 , P4

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