If the value of ionic radius ratio left( frac | vedclass

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(C) The ionic radius ratio $\left( \frac{r_c}{r_a} \right)$ determines the coordination number and geometry of the crystal lattice.For a radius ratio

Vedclass · Accepted Answer

Octahedral

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(C) The ionic radius ratio $\left( \frac{r_c}{r_a} \right)$ determines the coordination number and geometry of the crystal lattice.For a radius ratio in the range $0.414 - 0.732$,the coordination number is $6$,which corresponds to an octahedral geometry.Since the given value $0.52$ falls within this range,the geometrical arrangement is octahedral.

If the value of ionic radius ratio $\left( \frac{r_c}{r_a} \right)$ is $0.52$ in an ionic compound,the geometrical arrangement of ions in the crystal is:

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