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Agl crystallises in cubic close packed Z...

Agl crystallises in cubic close packed ZnS structure. What fraction of tetrahedral sites is occupied by Ag+ ions?

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ln Agl.. If there are .x. - ions there will be .Ag^+. ions.Since I" ions form the lattice, the number of tetrahedral voids .=2 x.. As there are .x Ag^+. ions to occupy these voids, tion of tetrahedral voịdsoccupied by .Ag^+. ions .=x/2 x=1/2=50 %.
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