Packing fraction in simple cubic lattice is — Solid State Chemistry Question

💡 Solution & Explanation

In a simple cubic lattice, $a = 2r$. Packing fraction = $\frac{1 \times \frac{4}{3}\pi r^3}{a^3} = \frac{\frac{4}{3}\pi r^3}{8r^3} = \frac{\pi}{6}$. Therefore, correct answer is A.