Grade 12th passIIT JEE Entrance Exam
Packing fraction of zns and also packing fraction of caf2?
1 Answer
Bhaskar
ZnS and Caf2 both have FCC structure. And packing fraction of both is same 0.74%. just the structure means orientation is different in ZnS sulphur occupies there corners n face centre wipe the Zn occupies alternate tetrahedral voids. In CaF2 Ca occupies the corners and face while F occupies the tetrahedral voids.
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