Z forms ccp and y covers one-third of tetrahedral voids. formula is
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Heya frnd...
Suppose atoms of element Z present in CCP=x
Number of tetrahedral voids =2x
Since 1/3 rd of the tetrahedral voids are occupied by atoms of element Y
Number of atoms of elements y=1/3×2x
=2x/3
Ratio of y:z=2x/3:x
=2:3
Hence the formula of the compound =y2z3
Suppose atoms of element Z present in CCP=x
Number of tetrahedral voids =2x
Since 1/3 rd of the tetrahedral voids are occupied by atoms of element Y
Number of atoms of elements y=1/3×2x
=2x/3
Ratio of y:z=2x/3:x
=2:3
Hence the formula of the compound =y2z3
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