Question

If r is radius of void and R is radius of the sphere, then for an atom to ocuppy an octahedral void which relation holds true?

• A. r = 0.225 R
• B. r = 2.25 R
• C. r = 225 R
• D. r = 0.414 R

Answer 1

The correct option is D

r = 0.414 R

For an atom to occupy a octahedral void, its radius must be 0.414 times the radius of the sphere.