If A is the atomic mass number of an element, N is the Avogadro number and a is the lattice parameter, then the density of the element, if it has bcc crystal structure, is |
$\frac{A}{Na^3}$ $\frac{2A}{Na^3}$ $\frac{\sqrt{3}A}{Na^3}$ $\frac{2\sqrt{2}A}{Na^3}$ |
$\frac{2A}{Na^3}$ |
$d=\frac{Z×A}{N×a^3}$ For bcc, Z = 2 $d=\frac{2A}{Na^3}$ |