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

Answer 1

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