Question

explain defects due to anion vacancies or F centres​

Answer 1

Metal excess defect:
This defect is caused due to anionic vacancies and by the presence of extra cations in the interstitial sites. ... The electron is lost by the metal atom is then diffuses the crystal and occupy the anionic vacancy site and form F-centres inside the crystal.

Answer 2

Answer:

Metal excess defect:

This defect is caused due to anionic vacancies and by the presence of extra cations in the interstitial sites. ... The electron is lost by the metal atom is then diffuses the crystal and occupy the anionic vacancy site and form F-centres inside the crystal.

Explanation:

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