Sodium metal crystallizes in BCC lattice with the cell edge, Å. What is the radius of the sodium ato — Solid State Chemistry Question

💡 Solution & Explanation

For a BCC lattice, $4r = \sqrt{3}a$. The radius $r = \frac{\sqrt{3} \times 4.29}{4} = \frac{1.732 \times 4.29}{4} \approx 1.86$ Å. Therefore, correct answer is A.