Cesium has a radius of 272 pm and crystallizes in a body-centered cubic structure.What is the edge length of the unit cell?
A)314 pm
B)385 pm
C)544 pm
D)628 pm

Question

Quizplus · Accepted Answer

In a body-centered cubic (BCC) structure, the relationship between the atomic radius (r) and the edge length (a) is given by: a = 4r/√3. For cesium, with r = 272 pm, the edge length a = 4(272 pm)/√3 ≈ 628 pm.

Cesium Has a Radius of 272 Pm and Crystallizes in a Body-Centered