Chemical Forums
Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Rutherford on April 14, 2012, 08:39:36 AM
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What are the values of the magnetic quantum number for subshell p(l=1)? Are they -1,0,1 in this sequence?
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I believe yes.
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Well, I was doing this problem:
Write the el. configuration of an atom, if his valent electrons have these properties:
n=4, l=0, ml=0, ms=+1/2
n=4, l=0, ml=0, ms=-1/2
n=4, l=1, ml=0, ms=+1/2
I thought that the configuration of the valent electrons would be: 4s2 4p2, but in the answer it is 4s2 4p1. I am really confused. How can that be right?
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There are three electrons listed in the problem, why did you expect four?
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Good point. But how can it be "4p1" if ml is 0? If I draw a p orbital diagram ml=0 is the middle box I suppose. So the ml=-1 box must be filled with 1 electron first and then the middle box.
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No, there is no filling order of this type. We usually draw them starting with the left box, but it is just a meaningless convention.
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Ok, thanks.