Chapter 12.2, Problem 1PE

Interpretation Introduction

Interpretation: The radius and the density of the unit cells of silver and gold crystalis is to be calculated using the given edge length.

Concept introduction: For face centered cubic crystal, the radius of the sphere are calculated as,

$\text{Radius}=0.3536\times \text{Edge}\text{length}$

The density of the face centered unit cell is calculated by the formula,

$\text{Density}=\frac{\text{Molar}\text{mass}\times 4}{\text{Avogadro's}\text{number}\times {\left(\text{Edge}\text{length}\right)}^3}$

To determine: The radius and the density of the unit cells of silver and gold crystal.