The difference between electron gain enthalpi | vedclass

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Question

(B) The electron gain enthalpy $(\Delta H_{eg})$ is the energy change when an electron is added to a neutral gaseous atom.
$Cl$ has the most negative

Vedclass · Accepted Answer

$Ne$ and $Cl$

Vedclass · Answer

(B) The electron gain enthalpy $(\Delta H_{eg})$ is the energy change when an electron is added to a neutral gaseous atom.
$Cl$ has the most negative (exothermic) electron gain enthalpy among all elements due to its high effective nuclear charge and small size.
$Ne$ is a noble gas with a stable octet configuration,making the addition of an electron highly unfavorable,resulting in a large positive (endothermic) electron gain enthalpy.
Therefore,the difference between the most positive value $(Ne)$ and the most negative value $(Cl)$ results in the maximum difference.

The difference between electron gain enthalpies will be maximum between:

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