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Fluorite(caf2) adopts face centred cubic structure with latice parametre a=5.463 unit,.lf the ionic radius of anion(f-) is is 1.71 unit,the ionic radius of cati
Fluorite(CaF2) adopts face centred cubic structure with latice parametre a=5.463 unit,.lf the ionic radius of anion(F-) is is 1.71 unit,the ionic radius of cation(Ca 2+) is unit.(in 2decimal places)
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Saurabh 1
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This same question came in gate 2017 and I think the structure you might have seen of CaF2 in books or anywhere else will lead to other answer quite different from what given in gate answer key.. So I'm here by attaching the one solution using general formula which matches with the gate answer key...
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can yoi send me the r value for bcc and hcc also
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Here it is... You can also read this from any chemistry book of class 12th (solid state chapter).
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Ashutosh singh
but the value of cation radius should be less then or equal to the value of anion radius. Here the value of cation radius is greater than anion radius. How..???