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Answer Electron affinity : Electron affinity is defined as the amount of energy released Then an electron is added to an isolated gareous stown. Xo) te- (a) x (g) + a Hrelesed. → During the addition of an electron, enersy can eigther be released on absorbed. Negative election geuh enthalpy of affinity - when enngy is relea&ed while acceepting an electron. electron gath Positive enthalpy or affinity - when energy is suffied to an atom while adding an electron.
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→ election geuh enthalpy depends on atomic size and the nuclean charge - Smallen size of adoon (metal) have lessen Positive electron off affinity. Hence, Br a most energy relaaked by geeining electron mg most energy reruired by agging an election "Please rate it"
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