Why EA of fluorine is less than that of chlorine?
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We know, On moving from the top to the bottom any group then the Electron gain enthalpy becomes less negative.
Since, the size of the atom of Florine atom is less than that of the Chlorine. As a consequence of which there is the strong inter electronic repulsion's in the Relatively compact 2p-subshells of fluorine and thus the incoming does not feels much attraction.
Hence, the Electron affinity of the Florine is less than that of the Chlorine.
Hope it helps.
Since, the size of the atom of Florine atom is less than that of the Chlorine. As a consequence of which there is the strong inter electronic repulsion's in the Relatively compact 2p-subshells of fluorine and thus the incoming does not feels much attraction.
Hence, the Electron affinity of the Florine is less than that of the Chlorine.
Hope it helps.
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