What is the decreasing order of the second io | vedclass

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Question

(A) The ionization enthalpy (both first and second) decreases as we move down the group in the periodic table.Since $Mg, Ca,$ and $Ba$ belong to Group

Vedclass · Accepted Answer

$Mg > Ca > Ba$

Vedclass · Answer

(A) The ionization enthalpy (both first and second) decreases as we move down the group in the periodic table.Since $Mg, Ca,$ and $Ba$ belong to Group $2$ and are arranged in the order $Mg$ (period $3$),$Ca$ (period $4$),and $Ba$ (period $6$),the second ionization enthalpy decreases as the atomic size increases.Therefore,the correct decreasing order is $Mg > Ca > Ba$.

What is the decreasing order of the second ionization enthalpy for $Mg, Ca,$ and $Ba$?

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