In the compound AX, the radius of A^+ ion is 95 pm and that of X^- ion is 181 pm. Predict the crystal structure of AX and write the coordination number of of each of the ions.

In the compound AX, the radius of A^+ ion is 95 pm and that of X^- ion

1.	In the compound AX, the radius of A^+ ion is 95 pm and that of X^- ion is 181 pm. Predict the crystal structure of AX and write the coordination number of of each of the ions.
Answer» SOLUTION :Radius ratio, `r_+ // r_-` =95/181=0.525 which lies in the range 0.414-0.732. HENCE, the structure is OCTAHEDRAL and coordination number is 6.