Question 2.41

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Annah Khan 1B
Posts: 28
Joined: Fri Jul 22, 2016 3:00 am

Question 2.41

Postby Annah Khan 1B » Sun Jul 16, 2017 9:27 pm

"Of the following sets of four quantum numbers {n, l, ml, ms}, 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}"

So far, I've solved that the first configuration is possible, but I'm not sure about the other two. Why are/aren't they possible?

604807557
Posts: 51
Joined: Wed Nov 16, 2016 3:02 am

Re: Question 2.41

Postby 604807557 » Mon Jul 17, 2017 4:12 am

(b) is not possible because l = 0 so ml must also = 0
(c) is not possible because the maximum value l can have is n - 1 and since n = 4, 4 - 1 = 3 so the maximum l can be is 3 not 4


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