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NTA Abhyas JEE Main2020ChemistrySolid StatePractice

Calculate the percentage of packing efficiency in simple cubic unit cell.

Correct answer

52.40

Step-by-step solution

In simple cubic, packing efficiency = Volume of one atom × 1 0 0 Volume of unit cell = 4 3 πr 3 8r 3 × 100 = π 6 × 100 = 52 .4% where, r = radius of one sphere or atom.

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