Question
$\mathrm{NaCl}$ has $\mathrm{FCC}$ structure. How many $\mathrm{Na}^{+}$ and $\mathrm{Cl}^{-}$ ions are there in unit cell?
Step 1
In this structure, the $\mathrm{Na}^{+}$ ions are at the corners and face centers of the unit cell, while the $\mathrm{Cl}^{-}$ ions are at the body center and edge centers. Show more…
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