1E. 9

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Ami_Pant_4G
Posts: 106
Joined: Sat Aug 24, 2019 12:17 am

1E. 9

Postby Ami_Pant_4G » Sun Oct 20, 2019 4:40 pm

f the following sets of four quantum numbers {n,l ,m l ,m s}, identify the ones that are forbidden for an electron in an atom and explain why they are invalid: (a) {4, 2, -1, +1/2}; (b) {5, 0, -1, +1/2}; (c) {4, 4, -1, +1/2}.

Can someone please explain why c) works

JinwooLee_1F
Posts: 47
Joined: Sat Aug 17, 2019 12:15 am

Re: 1E. 9

Postby JinwooLee_1F » Sun Oct 20, 2019 4:42 pm

c is not possible. If n = 4, then l can only be 0,1,2,3 or more specifically up to n-1. Therefore, having both n = 4 and l = 4 is not possible.


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