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(B) The limiting radius ratio $(r/R)$ determines the coordination number and the type of void formed in a crystal lattice.For a trigonal void,the limi

Vedclass · Accepted Answer

$0.225 - 0.414$

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(B) The limiting radius ratio $(r/R)$ determines the coordination number and the type of void formed in a crystal lattice.For a trigonal void,the limiting radius ratio is $0.155$.For a tetrahedral void,the limiting radius ratio is $0.225$.For an octahedral void,the limiting radius ratio is $0.414$.For a cubic void,the limiting radius ratio is $0.732$.Therefore,the range for a tetrahedral void is $0.225$ to $0.414$.

The limiting radius ratio for a tetrahedral void is:

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