The radius ratio $\left( \frac{r_{+}}{r_{-}} \right)$ of an ionic solid $\left( A^{+}B^{-} \right)$ is 0.69. What is the coordination number of $B^{-}?$

Question

Dr. Abubacker · Accepted Answer

(a)
Relation between radius ratio and coordination number
[table] $\mathbf{\ \ \ \ \ \ \ \ \ }\frac{\mathbf{r}_{\mathbf{c}}}{\mathbf{r}_{\mathbf{a}}}$ | Coordination number ; 0.155 $-$ 0.225 | 3 ; 0.225$\  -$ 0.414 | 4 ; 0.414 $-$ 0.732 | 6 ; 0.732 $- \$1 | 8 [/table]

Q. The radius ratio $\left( \frac{r_{+}}{r_{-}} \right)$ of an ionic solid $\left( A^{+}B^{-} \right)$ is 0.69. What is the coordination number of $B^{-}?$

Explanation

Reviewed by Dr. Abubacker

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