# In the rsoelectroruc species, the ionic radii (A) of ${\mathrm{N}}^{3-},{\mathrm{O}}^{2-}$ and ${\mathrm{F}}^{-}$ are respectively given by :

1. A

$\begin{array}{r}1.36,1.40,1.71\end{array}$

2. B

$\begin{array}{r}1.36,1.71,1.40\end{array}$

3. C

$1.71,1.40,1.36$

4. D

$1.70,1.36,1.40$

FREE Lve Classes, PDFs, Solved Questions, PYQ's, Mock Tests, Practice Tests, and Test Series!

+91

Verify OTP Code (required)

### Solution:

The ionic radii in the isoelectronic species  of ${\mathrm{N}}^{3-},{\mathrm{O}}^{2-}$ and ${\mathrm{F}}^{-}$ respectively provided by $1.71,1.40,1.36$ These species all have the same number of electrons in them. The effective nuclear charge rises as the atomic number rises. The nucleus becomes more attractive to the valence electrons. As a result, the ionic radii grow.

## Related content

Join Infinity Learn Regular Class Program!