1.

The radius of A^(+) is 0.95 Å andof B^(-) is 1.81 Å. The coordination number of A^(+) is :

Answer»

4
6
8
2

Solution :`( r_(A^(+)))/( r_(B^(-))) = ( 0.95)/( 1.81 ) = 0.523`
SINCE RADIUS ratio `( r^(+) // r^(-))`lies between 0.414 - 0.732 , the coordination NUMBER is 6.


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