In LiI Crystal, I− ions form a cubical closest packed arrangement an – InterviewSolution

1.	In LiI Crystal, I− ions form a cubical closest packed arrangement and Li+ ions occupy octahedral holes. What is the relationship between the edge-length of the unit cells and the radii of the I– ions? Calculate the limiting ionic radii of Li+ and I− if a = 600pm.
Answer» In LiI Crystal, $I^{-}$ ions form a cubical closest packed arrangement and $L i^{+}$ ions occupy octahedral holes. What is the relationship between the edge-length of the unit cells and the radii of the $I^{-}$ ions? Calculate the limiting ionic radii of $L i^{+}$ and $I^{-}$ if a = 600pm.

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