What is the formula of the compound formed by elements X and Y if atom – InterviewSolution

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1.	What is the formula of the compound formed by elements X and Y if atoms of element Y are in hcp arrangement and those of the element X occupy 2//3rd of tetrahedral voids?
Answer» Solution : Number of tetrahedral voids FORMED is equal to TWICE the number of atoms of ELEMENT Y and only `2/3` rd of these are OCCUPIED by the atoms of X. Hence the ratio of the atoms of X and Y is `2 x 2/3 : 1` or 4:3 `:.` Formula of the compound is `X_4Y_3`.

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