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Why Electron affinity of Fluorine is less than Chlorine?
I see. Does the electron affinity of an atom have any relation to its electronegativity?
Yes, the electron affinity of an atom is related to its electronegativity. Electronegativity refers to the tendency of an atom to attract electrons towards itself when it is in a chemical bond. Fluorine, being more electronegative than Chlorine, has a greater tendency to attract electrons towards itself. However, in the case of electron affinity, the smaller atomic size of Fluorine makes it harder to add an electron, resulting in a lower electron affinity than Chlorine.