Q. A compound is formed by elements $A$ and $B$. This crystallizes in the cubic structure when atoms $A$ are at the corners of the cube and atoms $B$ are at the centre of the body. The simplest formula of the compound is
A) $AB$
B) $AB_{2}$
C) $A_{2}B$
D) $AB_{4}$
Explanation
(a)
$A$ atoms are at eight corners of the cube. Therefore, the number of $A$ atoms in the unit cell $= \frac{8}{8} = 1,\$atoms $B$ per unit cell=1. Hence, the formula is $AB$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.