A compound formed by elements X and Y crystallizes in a cubic lattice, where X atoms are at corners and Y atoms are at the body centre and face centres of the cube. What is the formula of the compound?
Answer & explanation
Correct answer: option 4
X atoms are at corners = \(\frac{1}{8}\) x 8 = 1
Y atoms are at the body centre and face centres of the cube = 1 + \(\frac{1}{2}\) x 6 = 4
X:Y = 1:4
The formula of compound is X1Y4