electron spin

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Jamie2002
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Joined: Wed Sep 30, 2020 9:55 pm

electron spin

Postby Jamie2002 » Mon Nov 16, 2020 11:43 pm

When a question asks for the electron spin, do we always say that it can either be +½ or -½? Or if we know that the electron in question is an unpaired electron, we can say that it has an electron spin of +½?

Andrew Jubintoro 3J
Posts: 118
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Re: electron spin

Postby Andrew Jubintoro 3J » Tue Nov 17, 2020 12:20 am

I think it can be either +½ or -½. The only thing you know is that if two electrons occupy the same orbital, their spins must be paired (one +½, one -½).

Andrew Wang 1C
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Re: electron spin

Postby Andrew Wang 1C » Tue Nov 17, 2020 10:27 am

If an orbital only has one electron and is in the ground state, I'm pretty sure the spin should be +½. It wouldn't be in the ground state if it had spin -½.

Pranav Kadiyala 1A
Posts: 126
Joined: Wed Sep 30, 2020 9:58 pm

Re: electron spin

Postby Pranav Kadiyala 1A » Tue Nov 17, 2020 6:10 pm

Additionally, if you are drawing out the electron configuration diagram, make sure all unpaired electrons have the same spin!

OwenSumter_2F
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Re: electron spin

Postby OwenSumter_2F » Wed Nov 18, 2020 9:36 am

Furthermore, most questions of electron configuration won't ask for the electron spin since it is a 50/50 and you can't know more without more context. That being said, if you see a question where the answer for electron spin is something such as 0 or 1 you know it is wrong.


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