Quantum number and electronic configuration

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Homework Help Overview

The problem involves determining all possible quantum numbers for the electronic configuration of carbon, which is given as 1s² 2s² 2p².

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to clarify whether the question requires writing the electronic configuration first and then listing all quantum number combinations. They provide initial quantum numbers for the 1s and 2s orbitals but express uncertainty about the requirements.
  • Some participants question the inclusion of the magnetic quantum number (ml) and its relevance to the problem.

Discussion Status

The discussion is ongoing, with participants exploring the necessary components of quantum numbers. Guidance has been offered regarding the importance of ml in relation to the orbital's orientation, but no consensus has been reached on the complete approach to the problem.

Contextual Notes

Participants are navigating the definitions and implications of quantum numbers, particularly in the context of carbon's electronic configuration. There may be assumptions about prior knowledge of quantum mechanics that are being questioned.

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Homework Statement


The problem is: find all possible quantum numbers for each electronic configure of carbon.


2. The attempt at a solution
I don't quite understand what the question is asking. Does it ask first write down the electronic configuration and write down all quantum number combination? Like the following

The electronic configuration for carbon is [tex]1S^2 2S^2 2P^2[/tex]

1) n=1, l=0
because 2s+1=2 => s=1/2
ms = 1/2, -1/2

2) n=2, l=0 or 1

so,

n=2, l=0, ms=1/2, -1/2

n=2, l=1, ms=1/2, -1/2
 
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Looks good for the most part, but there is also ml to consider.
 
Redbelly98 said:
Looks good for the most part, but there is also ml to consider.

ml? What's that?
 
Redbelly98 said:
You can think of it as describing the orientation of the orbital, and is related to l which describes the orbital's shape.

http://www.vectorsite.net/tpqm_04.html

Thanks
 

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