Question

If AgI crystallises in zincblend structure
with I- ion at lattice points what, fraction
of tetrahedral void, is occupied by Ag+ ions​

Answer 1

Answer:

As I- ions form the lattice , number of tetrahedral voids = 2n, As there are n Ag+ ions to occupy these voids, therefore, fraction of tetrahedral voids occupied by Ag+ ions=n/2n = 1/2 = 50 % .