KBr crystallizes in a fcc lattice (similar to | vedclass

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(A) $KBr$ has a rock-salt $(NaCl)$ type structure where both $K^+$ and $Br^-$ ions form an $fcc$ lattice.In an $fcc$ lattice,the nearest neighbors of

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$K^+, 12$

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(A) $KBr$ has a rock-salt $(NaCl)$ type structure where both $K^+$ and $Br^-$ ions form an $fcc$ lattice.In an $fcc$ lattice,the nearest neighbors of a cation $(K^+)$ are $6$ anions $(Br^-)$ at a distance of $a/2$.The second nearest neighbors are the ions of the same charge $(K^+)$ located at the face centers of the unit cell.There are $12$ such $K^+$ ions at a distance of $a/\sqrt{2}$ from the central $K^+$ ion.Therefore,the second nearest neighbor of $K^+$ is $K^+$ and their number is $12$.

$KBr$ crystallizes in a $fcc$ lattice (similar to $NaCl$). The second nearest neighbor of $K^+$ ion and its number are:

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