Chemistry - Solid State Question with Solution | TestHub

In a simple cubic structure, each particle is located at the corners of the cubic unit cell.

The nearest neighbours of any particle are the particles situated at the adjacent corners along the edges of the unit cells.

For any given particle, there are $2$ nearest neighbours along the x-axis, $2$ along the y-axis, and $2$ along the z-axis.

Total number of nearest neighbours $=2+2+2=6$.

Therefore, the coordination number of a particle in a simple cubic structure is $6$.

Answer: $6$