The unit cell dimensions of NaCI, KCI, NaBr, and KBr, all of which crystallize in face-centred cubic
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The unit cell dimensions of NaCI, KCI, NaBr, and KBr, all of which crystallize in face-centred cubic lattices, are 562.8 pm, 627.7 pm, 596.2 pm, and 658.6 pm, respectively. In each case, anion and cation are in contact along an edge of the unit cell. Do the data support the contention that ionic radii are constants independent of the counter-ion?
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See Fig 2023 of the text or Fig 201 of this manual The length of an edge in the fcc lat...View the full answer
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