sapling 13

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Karina Rodriguez 2H
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Joined: Wed Sep 30, 2020 9:34 pm

sapling 13

Postby Karina Rodriguez 2H » Sun Nov 01, 2020 7:56 pm

"How many electrons in an atom could have these sets of quantum numbers? n=3
n=4,ℓ=1
n=7,ℓ=2,mℓ=−1"
What do I need to refer to?

keely_bales_1f
Posts: 94
Joined: Wed Sep 30, 2020 9:41 pm

Re: sapling 13

Postby keely_bales_1f » Sun Nov 01, 2020 8:15 pm

In Lavelle's lectures, he talked about what each of the variables represent. I believe it was his week 3 Friday Lecture. I have attached a picture that should help with this problem.
Attachments
helpful table for values of l.png
helpful table for values of l.png (18.74 KiB) Viewed 62 times

Eva Becker
Posts: 54
Joined: Wed Sep 30, 2020 9:40 pm

Re: sapling 13

Postby Eva Becker » Sun Nov 01, 2020 8:17 pm

To help you with n=3, keep in mind that the s, p, and d orbitals are included, so make sure to add up all the electrons that occupy those orbitals.

Sera Aintablian 2E
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Joined: Wed Sep 30, 2020 9:35 pm
Been upvoted: 1 time

Re: sapling 13

Postby Sera Aintablian 2E » Sun Nov 01, 2020 8:21 pm

Professor Lavelle showed us a chart in his last lecture that shows the shells, subshells, and their corresponding orbitals. ml-1 is only one orbital, so it only holds two electrons.

Sebastian2I
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Joined: Wed Sep 30, 2020 9:58 pm

Re: sapling 13

Postby Sebastian2I » Sun Nov 01, 2020 10:53 pm

Also, don't forget to take into account the two different magnetic fields that electrons can occupy inside the same orbital - for every space allotted by calculating the total potential values of ml, there can be a maximum of two electrons, according to the Pauli exclusion principle.

Lucy Weaver 1K
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Joined: Wed Sep 30, 2020 9:56 pm

Re: sapling 13

Postby Lucy Weaver 1K » Sun Nov 01, 2020 11:02 pm

It helps me to go through it with the chart that Dr. Lavelle showed us in his lecture Friday of week 3. So for example, if it tells you that n=3, you know that there are three subshells (s,p, and d). In the s subshell, there are two spots for electrons, in the p subshell, there are 6 spots for electrons and in the d subshell, there are 10 places for electrons. This means that theres a total of 18 spots for electrons when n=3. When it gets more specific for example l=0, you know to only refer to the s orbital so theres only two spots for electrons no matter what n is equal to. I beleive someone posted a chart above that is helpful for that part, hope that helps :)

rhettfarmer-3H
Posts: 101
Joined: Wed Sep 30, 2020 9:59 pm

Re: sapling 13

Postby rhettfarmer-3H » Sun Nov 01, 2020 11:50 pm

For me, the best way to think of this is the shell all of a certain amount of electrons like 5d block holds 2 per 5 orbitals. Therefore, the periodic table is a really good place to count electrons because electrons match the atomic number. Also, Ml is one electron in an orbital. So my advice uses the periodic table to get familiar with electrons.

Michelle Magana 2B
Posts: 50
Joined: Tue Oct 06, 2020 12:17 am

Re: sapling 13

Postby Michelle Magana 2B » Mon Nov 02, 2020 12:01 am

thank you guys for the help, i was confused too


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