A compound formed by elements `A` and `B` crystallises in a cubic structure where `A` atoms are present at the corners of a cube and the `B` atoms are present at the face centres.The formula of the compound is

Options

A. `AB_(3)`
B. AB
C. `A_(3)B`
D. `A_(2)B_(2)`

Answer

A

Explanation

Contribution by the atom A in the centre of the cube =1
Contribution by the atoms B at the centre of all the
six faces `=6xx1//2=3`
:. Formula of compound `=AB_(3)`