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?

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter7: Ionic Compounds And Metals

Section: Chapter Questions

Problem 122A

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