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Combinations of Lenses & Mirrors

The radius of...

Question

The radius of cation and onion is $0.95 A^{o}$ and $1.81 A^{o}$ . Name the type of void present in the ionic crystal.

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Solution

$\frac{r^{+}}{r^{-}} = 0.525$
It lies between 0.414 to 0.732 which come in octahedral voids region.

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