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A compound is formed by two elements A a...

A compound is formed by two elements A and B. Atoms of the element B (as anions) are in ccp arrangement and those of the element A as cations occupy all the octahedral voids. What is the formula of the compound?

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The correct Answer is:
AB
The atoms of B (as anions) form ccp lattice and the number of octahedral voids is equal to the number of atoms of B. Since all the octahedral are occupied, the number of atoms of A = Number of atoms of B or the formula of the compound is AB.
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