Question

The structures of some common crystalline substancesfollow. Show that the net composition of each unit cell corresponds to the correct formula of each substance.

Short answer

The structures of some common crystalline substances. The net composition of each unit cell corresponds to the correct formula of each substance is explained below in steps.

The ionic compounds are NaCl, CsCl, ZnS, and TiO₂

Step-by-step solution

The crystal structure of NaCl

This ionic compound has a face-centered structure, i.e., fcc structure. Here,Na⁺ ions are four, and Cl^-ions are 12. Cl^- ions are at the edges. The four neighboring unit cell is linked to every lattice point.