The number of element ' B ' in the crystal
structure =4 N
Number of tetrahedral voids =2N
Number of octahedral voids =N
∴ Number of ' A ' in the crystal =2N​=24​=2
Number of oxygen (O) atoms =2 N=2×4=8
∴ The structure of bimetallic oxide =A2​B4​O8​
=AB2​O4​