Electron spin

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Sharon Rodriguez 3H
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Joined: Wed Nov 14, 2018 12:18 am

Electron spin

Postby Sharon Rodriguez 3H » Wed Oct 16, 2019 1:08 pm

I understand how to get the other quantum numbers however the spin state seems very conceptual. Are we ever going to be expected to figure out the spin state and if so, how would you go about doing that?

Posts: 110
Joined: Thu Jul 11, 2019 12:16 am

Re: Electron spin

Postby Isha_Maniyar_Dis2E » Wed Oct 16, 2019 1:10 pm

I don't think we will be going into finding the spin state of a specific electron. The idea of that quantum number is just that an electron can either have a positive spin or a negative spin, or a quantum number of +1/2 or -1/2. I think the main concept to understand is that if given 2 electrons in the same shell, the same subshell, and in the same orientation, the only difference would be the fourth quantum number, the spin state. This is why no two electrons in the same atom will ever have the exact same quantum numbers.

Hope this helped!

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Joined: Wed Sep 18, 2019 12:19 am

Re: Electron spin

Postby AKhanna_3H » Wed Oct 16, 2019 2:42 pm

I think that as long as you understand that +1/2 indicates a positive spin and -1/2 indicates a negative spin for the fourth quantum number, you should be good!

Justin Quan 4I
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Joined: Sat Sep 14, 2019 12:17 am

Re: Electron spin

Postby Justin Quan 4I » Wed Oct 16, 2019 3:31 pm

If the problem asked us to figure out the sign of the electron spin, and the electron is alone in its orbital, how do we know whether the electron has a positive or negative spin?

Astrid Lunde 1I
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Joined: Sat Sep 07, 2019 12:16 am

Re: Electron spin

Postby Astrid Lunde 1I » Wed Oct 16, 2019 3:48 pm

Is it only possible for an electron to have a +1/2 or -1/2 spin?

Cynthia Gong 1L
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Joined: Fri Aug 09, 2019 12:15 am

Re: Electron spin

Postby Cynthia Gong 1L » Wed Oct 16, 2019 4:06 pm

I believe +1/2 and -1/2 are the only possible spin states

Qiu Ya Wu 4I
Posts: 107
Joined: Fri Sep 20, 2019 12:17 am

Re: Electron spin

Postby Qiu Ya Wu 4I » Wed Oct 16, 2019 4:43 pm

Since there are two possible electrons that can have the same n,l, and m quantum numbers, we use +1/2 and -1/2 spin to distinguish them. For that reason, there can only be 2 spin states.

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Joined: Fri Aug 30, 2019 12:16 am

Re: Electron spin

Postby sarahsalama2E » Wed Oct 16, 2019 4:56 pm

Just like what was mentioned above, use +1/2 and -1/2 spin to distinguish up vs down spin. Remember, no two electrons in the SAME element can have the same set of quantum numbers.

Arvind 4G
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Re: Electron spin

Postby Arvind 4G » Thu Oct 17, 2019 1:38 am

As long as you remember that +1/2 is a positive spin and -1/2 is a negative spin, that's all I think matters

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