Question

Zn convert it's melted state to its solid state, it has HCP structure, then find out no. of nearest atom:-

• A. 12
• B. 8
• C. 4
• D. 6

Answer 1

The correct option is A 12

When Zinc is converted from it's melted state to solid state, it has HCP structure.
In hcp lattice,
Each sphere touches 6 spheres in its layer and 3 spheres below the layer and 3 spheres above the layer; i.e. number of nearest neighbours are 12.
$\text{Other examples are}:Mg,Cd,TiandBe$
Hence, option (c) is the correct answer.