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$Br^−$ ions form a close packed structure. If the radius of $Br^−$ ion is 195 pm, calculate the radius of the cation that just fits into the tetrahedral hole. Can a cation $A^+$ having a radius of 82 pm be slipped into the octahedral hole of the crystal $A^+ Br$?

1 Answer

Hence (A) is the correct answer.
answered May 30, 2014 by sreemathi.v

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