Question

Cesium chloride packs in a crystalline lattice (shown). the cesium ion is the darker sphere in the unit cell shown. choose the best description of the interstitial holes that the cesium ion occupies.

a) Octahedral hole with six spheres around it.
b) Tetrahedral hole with four spheres around it.
c) Cubic hole with eight spheres around it.
d) Dodecahedral hole with twelve spheres around it.

Answer 1

In the lattice of cesium chloride, the cesium ion occupies a cubic hole surrounded by eight spheres, which are chloride ions. Therefore the correct option is c).

Step-by-step explanation:

In the crystalline lattice of cesium chloride, the cesium ion occupies a cubic hole. A cubic hole is a type of void in a crystal structure where the atom or ion is surrounded by eight other atoms or ions located at the corners of a cube. In the case of cesium chloride, the chloride ions surround the cesium ion in a cubic arrangement. So, the correct answer is option c) Cubic hole with eight spheres around it.

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