Chapter 21, Problem 21.12E

Interpretation Introduction

Interpretation:

The maximum percentage volume that can be taken up by the atoms in a simple cubic unit cell is to be stated. The difference between the corresponding answer and the maximum percentage volume that can be taken up by the atoms in close packing is to be stated.

Concept introduction:

A unit cell of the crystal is the three-dimensional arrangement of the atoms present in the crystal. The unit cell is the smallest and simplest unit of the crystal which on repetition forms an entire crystal. Unit cell can be a cubic unit cell or hexagonal unit cell. The classification of a unit cell depends on the lattice site occupied by the atoms.