Calculate the radius ratio (r_(+)//r_(-)) and coordination number of L – InterviewSolution

1.	Calculate the radius ratio (r_(+)//r_(-)) and coordination number of Li^(+) and F^(-) ion in LiF crystal structure from the following data : r_(Li^(+)) = 60 pm , r_(F^(-)) = 136 pm
Answer» Solution :`(r_(Li^(+)))/(r_(F^(-)))=(60)/(136)= 0.441` `:.` LiF will have octahedral structure and COORDINATION NUMBER of each ION will be 6.

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