A compound is formed by two elements \( \mathrm{X} \) and \( \mathrm{Y} \). Atoms of element \( ...

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A compound is formed by two elements \( \mathrm{X} \) and \( \mathrm{Y} \). Atoms of element \( Y \) (as anions) make ccp and those
\( \mathrm{P} \)
of the element \( \mathrm{X} \) (as cations) occupy all the
W
octahedral voids. What is the formula of the compound?
(A) \( \mathrm{XY}_{2} \)
(B) \( \mathrm{XY} \)
(C) \( \mathrm{X}_{3} \mathrm{Y} \)
(D) None of these
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