among fluorine and chlorine, which has greater electron affinity and why?
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chlorine has greater affinity than fluorine .It is because the upcoming electron feels a great repulsion from 2p orbital in fluorine .so some amount of energy is lose to fix it.while there is less repulsion between 3p orbital and upcoming electron
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Hyy,
Here is your answer---
Fluorine, though higher than chlorine in the periodic table, has a very small atomic size. This makes the fluoride anion so formed unstable (highly reactive) due to a very high charge/mass ratio. Also, fluorine has no d-orbitals, which limits its atomic size. As a result, fluorine has an electron affinity less than that of chlorine.
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