If silver iodide crystallizes in a zinc blende structure with I^- ions forming the lattice, then calculate fraction of the tetrahedral voids occupied by Ag^+ ions.

If silver iodide crystallizes in a zinc blende structure with I^- ions

1.	If silver iodide crystallizes in a zinc blende structure with I^- ions forming the lattice, then calculate fraction of the tetrahedral voids occupied by Ag^+ ions.
Answer» Solution :In AgI, if there are N `I^-` IONS, there will be n `Ag^+` ions. As `I^-` ions from 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%