Electron Affinity

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Maya_Peterson1C
Posts: 62
Joined: Fri Sep 28, 2018 12:28 am

Electron Affinity

Postby Maya_Peterson1C » Sat Nov 10, 2018 2:23 pm

Would a neutral K atom or K+ ion have a more negative value of electron affinity and why?

MaanasO 1A
Posts: 72
Joined: Fri Sep 28, 2018 12:26 am

Re: Electron Affinity

Postby MaanasO 1A » Sat Nov 10, 2018 4:35 pm

The K+ ion would more likely to have the higher electron affinity value. The ion has a full valence shell, so a lot more energy would be required to break that stable state that it would be to add another electron to a neutral K ion (which then would have a filled 4s orbital).

804994652
Posts: 68
Joined: Fri Sep 28, 2018 12:26 am

Re: Electron Affinity

Postby 804994652 » Sun Nov 11, 2018 9:24 pm

The more stable ion is K+ because it has a full shell, thus it is less likely to gain an electron.

405098546
Posts: 32
Joined: Fri Sep 28, 2018 12:24 am

Re: Electron Affinity

Postby 405098546 » Sun Nov 11, 2018 9:32 pm

Yes, since the K ion has a full valence shell it will require or release much more energy when an electron is added or taken away.


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