What is The Correct Order Of Electron Affinity Of Halogens
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The correct order of electron affinity of halogens is [Manip (a) F> Cl> Br> I (b) I> Br > CI>F
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Electron Gain Enthalpy is the energy released when one mole of an electron is added to gaseous atoms of an element.
The correct order of Electron gain enthalpy of Fluorine family is,
Cl>F>Br>I
The reason for this is that the size of the fluorine atom is very small. So when an electron is added in the fluorine atom it will suffer more electronegativity as all the electrons will be very close to each other and hence the electron gain enthalpy of chlorine is more negative than that of fluorine.
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