Question
Ionic radii are
✓
Answer
c
(c) $n^{th}$ Ionic radius in the nth orbit is given by ${r_n} = \frac{{{n^2}a}}{z}$ or ${r_n} \propto \frac{1}{Z}$
(c) $n^{th}$ Ionic radius in the nth orbit is given by ${r_n} = \frac{{{n^2}a}}{z}$ or ${r_n} \propto \frac{1}{Z}$
where $n$ is principal equation no., $a$ bohr's radius of hydrogen atom and $Z$ is the effective nuclear energy.
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