Electron affinity of Carbon vs Nitrogen

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Nickolas Manipud 1C
Posts: 60
Joined: Fri Sep 29, 2017 7:07 am

Electron affinity of Carbon vs Nitrogen

Postby Nickolas Manipud 1C » Tue Oct 31, 2017 11:11 am

Why does carbon have a higher electron affinity than nitrogen when the general trend is that electron affinity increases to the right?

Maya Krishnan 3E
Posts: 20
Joined: Tue Oct 10, 2017 7:14 am

Re: Electron affinity of Carbon vs Nitrogen

Postby Maya Krishnan 3E » Tue Oct 31, 2017 12:40 pm

Carbon has a higher electron affinity than nitrogen because its p-subshell only filled 2px & 2py, with one electron in each orbital. Nitrogen has a filled 2px, 2py, & 2pz, with one electron in each orbital, therefore making an electron want to fill Carbon’s unfilled orbital (2pz). Also, an empty orbital has less repulsion than a half filled one.


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