Configuration Notation  [ENDORSED]

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Justin Lau 1D
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Joined: Sat Jul 22, 2017 3:00 am

Configuration Notation

Postby Justin Lau 1D » Fri Oct 20, 2017 11:43 am

For electron configurations of atoms with p and d orbitals, is it necessary to specify the orbital type in the configuration e.g. 2px1 2py1 or is it acceptable to put them all together e.g. 2p2?

Alyssa Parry Disc 1H
Posts: 53
Joined: Sat Jul 22, 2017 3:01 am

Re: Configuration Notation

Postby Alyssa Parry Disc 1H » Fri Oct 20, 2017 12:25 pm

Yes because in the example he gave in class he specified what type of p orbitals. So I think we will need to do that for the test.

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Joined: Sat Jul 22, 2017 3:00 am

Re: Configuration Notation  [ENDORSED]

Postby SantanaRodriguezDis1G » Fri Oct 20, 2017 12:29 pm

if you just write 2p2 it does not specify what the ml quantum number would be. So you would need to include (for example: 2px1, 2py1)

Kourtney Nham 1L
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Joined: Fri Sep 29, 2017 7:04 am

Re: Configuration Notation

Postby Kourtney Nham 1L » Sat Oct 21, 2017 7:51 pm

Can someone explain why copper and chromium are exceptions for electron configurations?

Scott Chin_1E
Posts: 55
Joined: Sat Jul 22, 2017 3:00 am

Re: Configuration Notation

Postby Scott Chin_1E » Sat Oct 21, 2017 7:56 pm

In reference to chromium and copper, I think the professor is going to go over this exception this week.

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Re: Configuration Notation

Postby Chem_Mod » Sat Oct 21, 2017 8:30 pm

For most elements, the orbital filling rule is based on average energy levels of various orbitals. These energy levels are different for every element, but the general trend of which orbitals are higher in energy is pretty uniform. For copper and chromium, it is mainly an empirical result that the orbitals fill differently due to their energy levels, but there is not a simple reason for why this is the case.

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