Chapter 12.2, Problem 3Q

Interpretation Introduction

Interpretation:

The density of the lithium metal has to be calculated.

Concept introduction:

The density of the unit cell is calculated as follows,

$\frac{\text{Mass}}{\text{volume}}\text{ = density}$

The radius of the atom is calculated using following formula,

$\text{V}\text{=}{\text{(a)}}^{\text{3}}$

$\begin{array}{l}\text{Mass = number of moles × molar mass}\hfill \\ \text{Number of moles = }\frac{\text{Number of atoms per unit cell}}{\text{Avogadro number}}\hfill \end{array}$