The percentage of completely unoccupied (empty) space in a perfect Cubic Close-Packed (CCP) structur — Solid State Chemistry Question
Question
The percentage of completely unoccupied (empty) space in a perfect Cubic Close-Packed (CCP) structural arrangement is:
Answer: A
💡 Solution & Explanation
CCP is equivalent to FCC close packing, whose packing efficiency is $74\%$. Therefore the empty or unoccupied space is $100\%-74\%=26\%$.
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