Question

The enhanced force of cohesion in metals is due to :

• A. The covalent linkages between atoms
• B. The electrovalent linkages between atoms
• C. The lack of exchange of valency electrons
• D. The delocalization of valence electron between metallic kernels

Answer 1

The correct option is D The delocalization of valence electron between metallic kernels

The electrical attraction between kernels and mobile (delocalised) electrons is called metallic bond. Due to the delocalization of valence electrons(negatively charged) between positively charged metallic kernels, the force of cohesion in metals increases.