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Two ions A^(o+) and B^(Θ) have radii 88 ...

Two ions `A^(o+)` and `B^(Θ)` have radii `88` and `200` pm, respectively. In the close-packed crystal of compound `AB`, predict coodination number of `A^(o+)`.

Text Solution

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`r_(o+) / r_(ɵ) = (r(A^(o+)))/(r(B^(o-))) = (88)/(200) = 0.44`
It lies in the range `0.414` to `0.732`
Hence, the coordination number of `A^(o+) = 6`.
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