A certain metal crystallizes in a face-centered cubic structure.What is the edge length of the unit cell if the atomic radius of the metal is 134 pm?
A)189 pm
B)268 pm
C)309 pm
D)379 pm

Question

Quizplus · Accepted Answer

In a face-centered cubic (FCC) structure, the edge length (a) is related to the atomic radius (r) by the formula a = 2√2r. Substituting r = 134 pm, we get a = 2√2 * 134 pm ≈ 379 pm.

A Certain Metal Crystallizes in a Face-Centered Cubic Structure