Which one of the following arrangements repre | vedclass

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(B) The electron gain enthalpy (with negative sign) represents the energy released when an electron is added to a neutral gaseous atom. Generally,elec

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$O < S < F < Cl$

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(B) The electron gain enthalpy (with negative sign) represents the energy released when an electron is added to a neutral gaseous atom. Generally,electron gain enthalpy becomes more negative across a period. However,for $F$ and $Cl$,the electron gain enthalpy of $Cl$ is more negative than that of $F$ due to the small size of the $F$ atom,which leads to strong inter-electronic repulsions. The values are: $Cl$ $(349 \ kJ/mol)$,$F$ $(333 \ kJ/mol)$,$S$ $(200 \ kJ/mol)$,and $O$ $(142 \ kJ/mol)$. Thus,the correct order of increasing magnitude is $O < S < F < Cl$.

Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species?

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