A compound is formed by two elements X and Y. Atoms of the element Y (as anions) make ccp and those of element X (as cations) occupy all the octahedral voids. What is the formation of the compound?
We have given that ccp lattice is formed by Y and octahedral voids are occupied by X.
Thus, the number of atoms
We know that the number of octahedral voids in any closed-packed structure is equal to the number of atoms forming the lattice.
The number of octahedral voids = 4 for one unit cell.
Thus,
Hence the formula of the compound ? or
The empirical formula or the simplest formula can hence be written as
Therefore, Option(1) is correct