Question

In any ionic crystal A has formed cubical close
packing and B atoms are present at every
tetrahedral voids. If any sample of crystal contain
'N' number of B atoms then number of A atoms in
that sample is
(1) N
(2) N/2
(3) 2N
(4) √2N
​

Answer 1

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the answer is..

4). √2N

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