Homework 1E.7

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Homework 1E.7

Postby ayushibanerjee06 » Sat Oct 19, 2019 9:08 pm

For 1E. 7 b), in the configuration given, does it matter that the second electron in the 2p state has a downward spin? Or does it disqualify the configuration from being a ground state configuration?

Ellen Amico 2L
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Re: Homework 1E.7

Postby Ellen Amico 2L » Sat Oct 19, 2019 9:12 pm

Yes! This matters because it violates Hund's rule, which states not only that each orbital is occupied by a single electron first, but also that all the unpaired electrons need to have parallel spins (the same spin direction).

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Re: Homework 1E.7

Postby RRahimtoola1I » Sun Oct 20, 2019 11:10 am

What rule is part C of this question violating that makes it an excited state?

Lilyana Villa 1J
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Re: Homework 1E.7

Postby Lilyana Villa 1J » Sun Oct 20, 2019 11:36 pm

I believe part C violates Aufbau's Principle because the 2s orbital must be occupied with 2 electrons with parallel spins before electrons can be arranged into the 2p orbital. There's 1 electron in the 2s orbital and 1 electron in the 2p orbital.

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