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in Chemistry by (87.4k points)

A solid has NaCl structure. If radius of the cation is 150 pm. Calculate the maximum possible value of the radius of the anion. 

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Given: Radius of cation Na+ (r+ ) =150 pm 

To find: Radius of anion Cl (r ) =? 

Formula: 

Radius ratio = Radius of the cation/ Radius of the anion 

Calculation: NaCl has octahedral structural arrangement 

The range of r+/r- for stable six fold coordination is 0.414 to 0.732 

Hence the radius of cation can be calculated by

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