Problem 94

Given information

Here the given information is:

The unit cell is arranged in cubic-closest packing.

Step-by-step explanation

The three-dimensional close packing arrangement of identical spheres in which the spheres of the fourth layer are positioned directly above those of the first, those of the fifth layer lies directly above those of the second, and so on is called cubic close packing or face-centered cubic packing.

The volume of the sphere is given as:

Where 'V' is the volume and 'r' is the radius of the sphere.