Question

what is metal deficiency defect? give example​

Answer 1

Metal Deficiency Defect By Cation Vacancy. ... e.g., Transition metal compounds like NiO, FeO, FeS etc. By having extra anion occupying interstitial site: In this, an extra anion is present in the interstitial position. The extra negative charge is balanced by one extra positive charge on the adjacent metal ion.

Answer 2

Metal deficiency defect by cation vacancy examples: transition metal compounds like NiO, FeO, FeS,etc.. by having extra an ion occupying interstitial site: in this , on extra an ion is present in interstitial position. The extra negative charge is balanced by one extra positive charge on the adjacent metal ion.