A solid is made up of 2 elements P and Q. Atoms are in ccp arrangement while atoms P occupy all the tetrahedral sites. What is the formula off the compound?
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As we know no. Of atoms in CCP is 4 therefore p=4 and we know no . Of octahedral voids are 4 and total tetrahedral voids are 8 but according. To question q occupy all octahedral and half tetrahedral voids , therefore q=4+4=8. ,So formula will be p4q8 or we can write pq2
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