Question

Atomicity of metals is :

• A. Monoatomic
• B. Triatomic
• C. Diatomic
• D. Tetra-atomic

Answer 1

The correct option is A

Monoatomic

Explanation for the correct option :

(A) Monoatomic

• Atomicity is the number of atoms present in one molecule.
• All the metals are composed of one atom in a molecule and have atomicity one.
• For example, lithium, sodium, potassium, etc.

Explanation for the incorrect option :

(B) Triatomic elements have three atoms in a molecule e.g. ${\mathrm{O}}_3$(ozone)

(C) Diatomic has two atoms in a molecule e.g. ${\mathrm{N}}_2$(nitrogen)

(D) Tetra-atomic elements have four atoms in a molecule e.g. ${\mathrm{P}}_4$(phosphorous)

Hence, Atomicity of metals is monoatomic.