Electron affinities

  • Thread starter kay
  • Start date
  • #1
kay
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2

Main Question or Discussion Point

Why is the EA of Fluorine higher than chlorine when it shouldn't be according to periodic trends?

And in general when it is easy to add an electron to a substance, then is the EA high or low?
 

Answers and Replies

  • #2
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I'm sorry you are not finding help at the moment. Is there any additional information you can share with us?
 
  • #3
kay
60
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I forgot to add that by EA i meant 'Electron Affinity.' I think that's all. :(
 
  • #4
183
5
Are you referring to electronegativity? The trend is higher as you go up and right on the periodic table, so F being more electronegative than Cl does not defy the trend.

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  • #5
kay
60
2
I mean Electron Gain Enthalpy or Electron Affinity.
 
  • #6
kay
60
2
So is there no one who knows the answer? :eek:
 
  • #8
223
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I think it can be explained by use of electron configuration of both F- and Cl-; one is more stable than the other. Therefore the energy to remove an electron from it is essentially larger than that of the other.
 

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