Compare the Packing Efficiency of Face-Centered Cubic Gold and Face-Centered

question 21

Multiple Choice

Compare the packing efficiency of face-centered cubic gold and face-centered cubic sodium chloride considering all the atoms.

• A)The efficiency of packing in the gold unit cell is higher.
• B)The efficiency of packing in the sodium chloride unit cell is higher.
• C)The efficiencies of packing in the two lattices are the same.
• D)Packing efficiencies cannot be defined for one or both of these.
• E)There is no way to compare without further information.

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