In a face centered lattice of X and Y, X atoms are present at the corners while Y atoms are at face centers. Then the formula of the compound would be if one of the X atoms is missing from a corner in each unit cell:A. `X_(7)Y_(24)`B. `X_(24)Y_(7)`C. `XY_(24)`D. `X_(24)Y`

In a face centered lattice of X and Y, X atoms are present at the corn

1.	In a face centered lattice of X and Y, X atoms are present at the corners while Y atoms are at face centers. Then the formula of the compound would be if one of the X atoms is missing from a corner in each unit cell:A. `X_(7)Y_(24)`B. `X_(24)Y_(7)`C. `XY_(24)`D. `X_(24)Y`
Answer» Correct Answer - A No. of X atom per unit cell `= 7 xx (1)/(8) = (7)/(8)` No. of Y atom per unit cell `= 6 xx (1)/(2) = 3` `:.` Formula `= X_(7//8) Y_(3) " or " X_(7) Y_(24)`

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In a face centered lattice of X and Y, X atoms are present at the corners while Y atoms are at face centers. Then the formula of the compound would be if one of the X atoms is missing from a corner in each unit cell:A. `X_(7)Y_(24)`B. `X_(24)Y_(7)`C. `XY_(24)`D. `X_(24)Y`

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