$ \propto \frac{1}{{{\rm{effective\;nuclear\;charge}}}}$

$ \propto \frac{1}{{{{\left( {{\rm{effective\;nuclear\;charge}}} \right)}^2}}}$

$ \propto {\rm{effective\;nuclear\;charge}}$

$ \propto {\left( {{\rm{effective\;nuclear\;charge}}} \right)^2}$

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NEET UG CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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Understanding +4 | -1

Ionic radii are:

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Correct option: A

\propto \frac{1}{{\mathrm{effective\;nuclear\;charge}}}

Option B (C > Be > B > Li) is correct because it follows the general trend of ionization energy increasing across a period, with the exception of Be being higher than B due to electron configuration.

NEET UG CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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