Seventh Edition 1F.11 C

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Cole Elsner 2J
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Joined: Fri Sep 28, 2018 12:25 am

Seventh Edition 1F.11 C

Postby Cole Elsner 2J » Wed Oct 24, 2018 7:00 pm

I'm a little confused about part C of question 11. For the other answer choices in the same column, their electron affinities are equal. However, for oxygen and sulfur, sulfur has a higher affinity. Why is this so?


Camille Marangi 2E
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: Seventh Edition 1F.11 C

Postby Camille Marangi 2E » Thu Oct 25, 2018 1:10 pm

Oxygen has a lower electron affinity because it has a smaller atomic radius than sulfur and thus the electrons experience significant electron-electron repulsions. Here's a link to a photo that shows the electron affinities of elements in the top right of the periodic table.

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