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Which of the following is the correct option regarding the packing efficiency of crystal structures?

Which of the following is the correct option regarding the packing efficiency of crystal structures? Correct Answer FCC=HCP>BCC

Packing efficiency = (volume of atoms in unit cell/volume of the unit cell)*100. Packing-efficiency of FCC, HCP, and BCC is 74%, 74%, and 68%. Therefore, the correct order is FCC=HCP>BCC.

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