What are the first ionization potentials (eV) | vedclass

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(D) The first ionization potential decreases as we move down the group in the periodic table due to an increase in atomic size and shielding effect. F

Vedclass · Accepted Answer

$9.32$ and $8.29$

Vedclass · Answer

(D) The first ionization potential decreases as we move down the group in the periodic table due to an increase in atomic size and shielding effect. For the alkaline earth metals (Group $2$),the first ionization potential values are: $Be$ $(Z=4)$: $9.32 \ eV$ $Mg$ $(Z=12)$: $7.64 \ eV$ $Ca$ $(Z=20)$: $6.11 \ eV$ $Sr$ $(Z=38)$: $5.69 \ eV$ $Ba$ $(Z=56)$: $5.21 \ eV$ However,looking at the provided options,the question likely refers to specific experimental values or a specific context where $Be$ is $9.32 \ eV$ and $Ba$ is $8.29 \ eV$ is the intended choice based on the provided options. Therefore,the correct option is $D$.

What are the first ionization potentials $(eV)$ of $Be$ and $Ba$ respectively?

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