Engineering Board Exam Reviewer · Engineering Materials · hard

What is the atomic packing factor of a simple cubic structure?

  1. 0.68
  2. 0.52
  3. 0.74
  4. 1.00

Answer

B. 0.52

Solution

APF = (1 atom × 4π R3/3)/(2R)3 = π /6 = 0.52.

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