1.

The ionic radii of A^(+) and B^(-) ions are 0.98 xx 10^(-10) m and 1.81 xx 10^(-10) m. The coordination number of each ion in AB is

Answer»

8
2 
6 
4

Solution :`(R^+)/(r^-) = (0.98 XX 10^(-10))/(1.81 xx 10^(-10)) = 0.541`


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