Which of the given atoms has the greatest ele | vedclass

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(B) Electron affinity is the energy released when an electron is added to a neutral gaseous atom to form a negative ion.$Cl$ has the highest electron

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$Cl$

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(B) Electron affinity is the energy released when an electron is added to a neutral gaseous atom to form a negative ion.$Cl$ has the highest electron affinity among the given elements.Although $F$ is more electronegative than $Cl$,the small size of the $F$ atom leads to significant inter-electronic repulsion between the incoming electron and the existing electrons in the $2p$ subshell.Consequently,the energy released upon adding an electron to $F$ $(-333 \ kJ \ mol^{-1})$ is less than that released for $Cl$ $(-349 \ kJ \ mol^{-1})$.Therefore,$Cl$ has the greatest electron affinity.

Which of the given atoms has the greatest electron affinity?

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