In a crystal of an ionic compound, the ions B form the close packed lattice and the ions A occupy all the tetrahedral voids. The formula of the compound is

In a crystal of an ionic compound, the ions B form the close packed la

1.	In a crystal of an ionic compound, the ions B form the close packed lattice and the ions A occupy all the tetrahedral voids. The formula of the compound is
Answer» `AB_(2)` `A_(2)B` AB `AB_(3)` SOLUTION :The number of tetrahedral voids is two PER ATOM of the crystal in a close packed structure. Since tetrahedral voids are occupied by A ions, there are two A ions per B ion inthe crystal.The formula of the compound is `A_(2)B`.