Chemistry - Solid State Question with Solution | TestHub

Number of atoms in fcc = 4

Total number of atoms$=\frac{\mathrm{w}}{\mathrm{a}\mathrm{t}\mathrm{o}\mathrm{m}\mathrm{i}\mathrm{c}\text{ wt.}}\times {\mathrm{N}}_{\mathrm{A}}$

Total number of atoms$=\frac{8}{80}\times {\mathrm{N}}_{\mathrm{A}}=\frac{{\mathrm{N}}_{\mathrm{A}}}{10}$

Number of unit cell$=\frac{{\mathrm{N}}_{\mathrm{A}}}{10}\times \frac{1}{4}$

$=\frac{6.0}{4}\times 10^{22}$

$=1.5\times 10^{22}$