ionization energy versus electron affinity

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ionization energy versus electron affinity

Postby AlyssaRivera » Mon Jun 11, 2018 9:23 pm

I know that these have the same periodic trends, but what exactly is the difference between the two? Also, what type of questions besides conceptual ones would be asked regarding them?

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Re: ionization energy versus electron affinity

Postby Chem_Mod » Mon Jun 11, 2018 9:55 pm

Ionization energy is the amount of energy required to remove an electron from an atom, while electron affinity is the degree to which an atom wants to keep its electrons. They have the same trends because a more electronegative element/atom (such as oxygen) has a stronger hold for electrons (electron affinity) and thus requires more energy to remove electrons from them (ionization energy).

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