## Quantum Numbers n, l, and m

Shuyi Yu 1B
Posts: 60
Joined: Fri Sep 28, 2018 12:16 am

### Quantum Numbers n, l, and m

Can the relationship between n, l, and m be described as shell, sub-shell, and orbital within a sub-shell, respectively? And does the value of l tell you the highest possible sub-shell of that particular energy level?

Tarika Gujral 1K
Posts: 62
Joined: Fri Sep 28, 2018 12:27 am

### Re: Quantum Numbers n, l, and m

n = principle energy level (shell), l is angular momentum (subshell), and ml = magnetic quantum (orbital).
The highest value of l is equal n-1
Values of l correspond to subshells: 0-s, 1-p, 2-d, 3-f

Posts: 77
Joined: Fri Sep 28, 2018 12:28 am
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### Re: Quantum Numbers n, l, and m

Yes, that's how they could be described! and the highest possible subshell of a particular shell would be n-1!

Hope this helped!

Athena L 1B
Posts: 59
Joined: Fri Sep 28, 2018 12:18 am

### Re: Quantum Numbers n, l, and m

and the fourth quantum number, ms, is either +1/2 or -1/2, and determines whether the electron is spin up or spin down

Anjali_Kumar1F
Posts: 62
Joined: Fri Sep 28, 2018 12:25 am

### Re: Quantum Numbers n, l, and m

How do you know if the spin is up or down?

mbaker4E
Posts: 69
Joined: Fri Sep 28, 2018 12:26 am

### Re: Quantum Numbers n, l, and m

Spin up is +1/2 and spin down is -1/2.

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