Two ions $A^{+}$ and $B^{-}$ have radii 88pm and 200pm, respectively. In the close-packed crystal of the compound AB, predict the coordination number of $A^{+}$

Q. In a compound

A B

, the ionic radii of

A^{+}

and

B^{-}

are

88

pm and

200

pm respectively the coordination number of

A^{+}

is:

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The two ions A+ and B− have radii 88 pm and 200 pm respectively. In the closed packed crystal of compound AB, predict the co-ordination number of A+.

The correct option is A 688200=0.440.44 is greater than 0.414 therefore it lies in therange 0.414 to 0.73 , hence coordination number = 6.

The two ions $A^{+}$ and $B^{-}$ have radii $88$ pm and $200$ pm respectively. In the closed packed crystal of compound $A B$ , predict the co-ordination number of $A^{+}$ .

The correct option is A $6$
$\frac{88}{200} = 0.44$

0.44 is greater than 0.414 therefore it lies in the
range 0.414 to 0.73 , hence coordination number = 6.