Like metallic crystals, ceramic crystals can have defects. We want to identify the type of defects and consider how they affect the overall crystal. Consider the schematic (on the right) of a NaCl crystal after the formation of an Na* vacancy to analyze for lonic type defects: CH Na CI What is the charge on the crystal before the vacancy is formed? What is the charge on the crystal after the vacancy is formed? Na CI Na Cr CI Na CI Na What should the charge on an ionic crystal be? Hint: what has the lowest energy; something that is positively charged, negatively charged or neutral?

Like metallic crystals, ceramic crystals can have defects. We want to identify the type of defects and consider how they affect the overall crystal. Consider the schematic (on the right) of a NaCl crystal after the formation of an Na* vacancy to analyze for lonic type defects: CH Na CI What is the charge on the crystal before the vacancy is formed? What is the charge on the crystal after the vacancy is formed? Na CI Na Cr CI Na CI Na What should the charge on an ionic crystal be? Hint: what has the lowest energy; something that is positively charged, negatively charged or neutral?

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter22: Inorganic Materials

Section: Chapter Questions

Problem 44AP

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