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Define radius ratio....

Define radius ratio.

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The ratio of the radius (r) of atom/ion present in a void to the radius (R) of the atoms/ions forming the lattice is called radius ratio. For example :
(i) For a Tetrahedral void r/R=0.225
(ii) For an Octahedral void r/R=0.414
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BETTER CHOICE PUBLICATION-THE SOLID STATE-Numerical Problems
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