A solid AB has NaCl type structure. If radius of cation A+ is 200 pm then maximum possible radius of the anion B– is
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The maximum possible radius of the anion B– is 483.1 pm.
Explanation:
Sodium chloride has FCC lattice and limiting radius ratio in the range of 0.414 - 0.732.
Radius ration = r⁺/ r⁻
We have to solve for the maximum possible radius of anion thus we will take minimum ratio which is 0.414,
We will rearrange the formula,
r⁻ = r⁺ / Radius ration
Radius ration = 0.414
r⁺ = 200 pm
r⁻ = ?
r⁻ = 200 pm / 0.414
r⁻ = 483.1 pm
Answered by
1
r- = 483.1 pm
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