Question

The $ZnS$ structure is cubic. The unit cell may be described as a face centered sulphide ion sub-lattice with zinc ions in the centers of alternating mini cubes made by partitioning the main cube into eight equal parts. The sum of the nearest neighbors around each $Z{n}^{2+}$ and $S^{2-}$ ion in the unit cell with be equal to

Answer 1

Answer: 8

Coordination number of $Z{n}^{2+}:S^{2-}=4:4$
so $4+4=8$