Paired vs Parallel electrons

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Sydney Pell 2E
Posts: 100
Joined: Wed Sep 11, 2019 12:17 am

Paired vs Parallel electrons

Postby Sydney Pell 2E » Sat Oct 19, 2019 1:36 pm

What is the difference between when electrons are paired vs parallel? How can you determine this?

Shivam Rana 1D
Posts: 106
Joined: Fri Aug 09, 2019 12:16 am

Re: Paired vs Parallel electrons

Postby Shivam Rana 1D » Sat Oct 19, 2019 1:41 pm

Paired e- are electrons that occupy the same orbital in a subhsell with opposite spins. Electrons that independently occupy multiple orbitals in a subshell with the same spin are parallel.

Amanda Lin 2I
Posts: 101
Joined: Sat Aug 17, 2019 12:15 am

Re: Paired vs Parallel electrons

Postby Amanda Lin 2I » Sat Oct 19, 2019 1:42 pm

Paired electrons have opposite spins while parallel electrons have the same spin.

Amy Kumar 1I
Posts: 114
Joined: Thu Jul 11, 2019 12:15 am

Re: Paired vs Parallel electrons

Postby Amy Kumar 1I » Sat Oct 19, 2019 2:01 pm

Electrons occupy orbital individually first so the spins are parallel. Once the available orbitals have been filled, they start pairing up, which is where the opposite spins come from.

Sydney Pell 2E
Posts: 100
Joined: Wed Sep 11, 2019 12:17 am

Re: Paired vs Parallel electrons

Postby Sydney Pell 2E » Sat Oct 19, 2019 2:13 pm

Thanks! So to clarify, when filling up a subshell, one electron will be in each orbital (parallel to each other) until each orbital is occupied and then after that, the electrons will start pairing up?

jisulee1C
Posts: 149
Joined: Thu Jul 25, 2019 12:17 am

Re: Paired vs Parallel electrons

Postby jisulee1C » Sat Oct 19, 2019 2:15 pm

^^yes. electrons will fill up each orbital until each orbital is occupied and then they will start to pair up. this is because the electrons will have electron to electron repulsion if they are in the same orbital which is not favorable.


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