Which of the following statements is not true for the crystal structure of cesium chloride ?
has a cubic structure.
and ions are arranged in a face-centred cubic lattice.
and ions have a coordination number of 8 and 6, respectively.
The ions are located at the corners of the cube and ions are at the center of the cube.
is an example of a simple cubic crystal lattice, not a face-centred cubic lattice as stated in option 2. In a simple cubic lattice, the unit cell consists of a cube with lattice points located at the corners of the cube. Each lattice point represents one ion. Additionally, there is one ion located at the centre of the cube.
In , each ion is surrounded by ions arranged at the corners of a cube around it, resulting in a coordination number of 8 for the ion. On the other hand, each ion is surrounded by ions arranged at the corners of an octahedron around it, resulting in a coordination number of 6 for the ion. This is stated in option 3.
Therefore, the correct statement regarding the location of and ions in the crystal structure is that ions are located at the corners of the cube and ions are located at the centre of the cube.
Option 4) incorrectly describes the location of the ion in the unit cell.