What is the radius `(r^(+)//r^(-))` for an ion to occupy :
(i) tetrahedral void. (ii) octahedral void?

How will you distinguish between Tetrahedral and Octahedral voids ?

In the mineral, spinel, having the formula MgAl_(2)O_(4) oxide ions ar arranged , in the cubic close packing, Mg^(2+) ions occupy the tetrahedrel voids while Al^(3+) ions occupy the octahedral voids. (i) What precnetage of tetrahedral voids is occupied by Mg^(2+) ions ? (ii) What precentage of octahedral voids is occupied by Al^(3+) ions ?

A : The number of spheres are equal to the number of octahedral voids as well as tetrahedral void. R : Octahedral void and tetrahedral void has equal size.

Radius Ratio | Octahedral and Tetrahedral Voids

In a crystalline solid, anions B arranged in ccp lattice and cations A occupy 50% of the octahedral voids. And 50% of the tetrahedral voids. What is the formula of the solid?

In a solid, oxide ions are arranged in ccp. Cations 'A' occupy one - sixth of the tetrahedral voids and cations 'B' occupy one - third of the octahedral voids. Which of the following is the correct formula of the oxide?

In a solid between A and B atoms of A are arranged in ccp array and atoms of B occupy all the octahedral voids and half of the tetrahedral voids. The formula of the compound is

CCP Packing,Location OF Tetrahedral and Octahedral Voids