The first ionization potentials $(\mathrm{eV})$ of ${Be}$ and ${B}$ respectively are

JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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The first ionization potentials

(\mathrm{eV})

{Be}

and

{B}

respectively are

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Correct option: D

9.32,8.29

Option D is correct because Beryllium has a higher ionization potential than Boron due to its stable, fully-filled 2s² electron configuration.

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X

X

\mathrm{O}, \mathrm{O}^{2-}, \mathrm{F}

\mathrm{F}^{-}