Solid State Structures Based on Close Packing

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Questions

Work through the questions below using the animated models and then log on to eLearning and complete the post-lab quiz.

1. What is the relationship between the:

(a) sodium chloride and nickel arsenide structures?

(b) calcium fluoride and sodium oxide structures?

(c) zinc blende and wurtzite zinc sulfide structures?

(d) cadmium chloride and cadmium iodide structures?

2. Complete the table below. For part (f), you will need to deduce a pattern from the values for (a) - (e).

Structure

Number of Ions in Formula
Cations	Anions

Coordination Number
Cation	Anion

(a) Sodium Chloride (NaCl)

(b) Calcium Fluoride (CaF₂)

(d) Cadmium Chloride (CdCl₂)

(e) Rutile (TiO₂)

(f) Corundum (Al₂O₃)