Question: A solid AB has a rock salt structure. If radius of cation$A^{+}$is 120 pm, what is the minimum val...

Question

A solid AB has a rock salt structure. If radius of cation $A^{+}$ is 120 pm, what is the minimum value of radius of $B^{-}$ anion?

Answer 1

Limiting ratio $\frac{rA^{+}}{r_{B^{-}}} = 0.414$

$r_{B^{-}}\frac{r_{A^{+}}}{0.414} = \frac{120}{0.414} = 290pm$

Question: A solid AB has a rock salt structure. If radius of cation\(A^{+}\)is 120 pm, what is the minimum val...