Which of the following processes will have th | vedclass

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(D) Ionization energy increases with the removal of successive electrons from the same atom because the effective nuclear charge increases. Comparing

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$Mg 	o Mg^{2+} + 2e^-$

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(D) Ionization energy increases with the removal of successive electrons from the same atom because the effective nuclear charge increases. Comparing the options: $A$ and $B$ represent the first ionization energy $(IE_1)$ of $Ba$ and $Ca$ respectively. Since $IE_1$ decreases down the group,$IE_1(Ca) > IE_1(Ba)$. $C$ and $D$ represent the sum of the first and second ionization energies $(IE_1 + IE_2)$ for $Ca$ and $Mg$ respectively. Since $Mg$ is above $Ca$ in the periodic table,$IE_1(Mg) > IE_1(Ca)$ and $IE_2(Mg) > IE_2(Ca)$. Therefore,the total energy required for $Mg 	o Mg^{2+} + 2e^-$ is the highest among the given options.

Which of the following processes will have the maximum ionization energy?

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