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The ionic radii (A^@)of C^(-4) and O^(-2...

The ionic radii `(A^@)`of `C^(-4)` and `O^(-2)` are 2.60 and 1.40 respectively .The ionic radius of the isoelectronic ion `N^(-3)` would be

A

2.6

B

1.71

C

1.4

D

0.95

Text Solution

Verified by Experts

The correct Answer is:
B
The ionic radii of isoelectronic ions decrease with the increase in the magnitude of the nuclear charge.
So, decreasing order of ionic radii is `C^(4-) gt N^(3-) gt O^(2-)`.
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