Question

Tetrahedral and octahedral interstitial holes are formed bythevacancies left when anions pack in a ccp array. (a) Which holecanaccommodate the larger ions? (b) What is the size ratio ofthelargest metal cation that can occupy an octahedral hole to thelargest that can occupy a tetrahedral hole while maintainingtheclose-packed nature of the anion lattice? (c) If half thetetrahedralholes are occupied, what will be the empirical formulaof thecompound MxAy, where M represents the cations and A theanions?
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