Question

Classify each of the following on the basis of their atomicity. $\left(\mathrm{a}\right){\mathrm{F}}_2\left(\mathrm{b}\right){\mathrm{NO}}_2\left(\mathrm{c}\right){\mathrm{N}}_2\mathrm{O}\left(\mathrm{d}\right){\mathrm{C}}_2\mathrm{H}{}_6(\mathrm{e}){\mathrm{P}}_4(\mathrm{f}){\mathrm{H}}_2{\mathrm{O}}_2(\mathrm{g}){\mathrm{P}}_4{\mathrm{O}}_{10}(\mathrm{H}){\mathrm{O}}_3(\mathrm{i})\mathrm{HCl}(\mathrm{j}){\mathrm{CH}}_4(\mathrm{k})\mathrm{He}(\mathrm{l})\mathrm{Ag}$

Answer 1

Atomicity:

• Atomicity is known as the measure of the total number of atoms present in a molecule.
• For the molecule consists of one atom, the atomicity of the molecules is defined as monoatomic.
• For the molecule consists of two atoms, the atomicity of the molecules is defined as diatomic.
• For the molecule consists of three atoms, the atomicity of the molecules is defined as triatomic.
• However, a polyatomic molecule is also known as a molecule Which is composed of three or more covalently bonded atoms.

Classification of the given molecules on the basis of their atomicity:

• Monoatomic: $\mathrm{He},\mathrm{Ag}.$
• Diatomic: ${\mathrm{F}}_2,\mathrm{HCl}$.
• Triatomic : ${\mathrm{NO}}_2,{\mathrm{N}}_2\mathrm{O},{\mathrm{O}}_3$
• Polyatomic : ${\mathrm{C}}_2\mathrm{H}{}_6(8\mathrm{atoms}),{\mathrm{P}}_4(4\mathrm{atoms}),{\mathrm{H}}_2{\mathrm{O}}_2(4\mathrm{atoms}),{\mathrm{P}}_4{\mathrm{O}}_{10}(14\mathrm{atoms}),{\mathrm{CH}}_4(5\mathrm{atoms})$

Hence, the given molecules have been classified above, according to their atomicity.