?Copper iodide crystallizes in the zinc blende structure. The separation between
Chapter 13, Problem 78(choose chapter or problem)
Copper iodide crystallizes in the zinc blende structure. The separation between nearest-neighbor cations and anions is approximately 311 pm, and the melting point is 606\({ }^{\circ} \mathrm{C}\). Potassium chloride, by contrast, crystallizes in the rock salt structure. Even though the separation between nearest-neighbor cations and anions is greater (319 pm), the melting point of potassium chloride is higher (776\({ }^{\circ} \mathrm{C}\)). Explain.
Text Transcription:
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