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An oxide of rhenium crystallizes with eight rhenium atoms at the comers of the unit cell and 12 oxygen atoms on the edges between them. What, is the formula of this oxide?

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$ReO$

$R e O_{2}$

$R e_{2} O_{3}$

$R e O_{3}$

answer is D.

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Detailed Solution

In $R e O_{3}$ cation at the center of the unit cell. Each rhenium center is surrounded by an octahedron defined by six oxygen centers.

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