The first ionization energy of alkaline earth | vedclass

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Question

(A) The first ionization energy of alkaline earth metals $(Group \ 2)$ is higher than that of alkali metals $(Group \ 1)$ because alkaline earth metal

Vedclass · Accepted Answer

Increase in nuclear charge of alkaline earth metals

Vedclass · Answer

(A) The first ionization energy of alkaline earth metals $(Group \ 2)$ is higher than that of alkali metals $(Group \ 1)$ because alkaline earth metals have a smaller atomic size and a higher nuclear charge compared to alkali metals in the same period.Due to the higher nuclear charge,the valence electrons are more strongly attracted by the nucleus,making it more difficult to remove an electron,thus resulting in higher ionization energy.

The first ionization energy of alkaline earth metals is higher than that of alkali metals. This is due to:

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