Question

In a BCC (Body-Centered Cubic) structure, the radius of the atoms is:

• A. \( \frac{a}{2} \)
• B. \( \frac{a}{4} \)
• C. \( \frac{\sqrt{3}}{4} a \)
• D. \( \frac{\sqrt{2}}{4} a \)

Hint:

For a BCC structure, the diagonal of the cube is equal to four times the radius of the atoms. Use this to derive the relationship between atomic radius and edge length.