Quantum Number m

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Quantum Number m

Postby ClaireHW » Wed Nov 01, 2017 6:03 pm

I'm confused about m and its relationship to electron configurations in general.
Does m influence electron configurations when we write them out? For instance how does m affect Carbon or [He]2s22p2? Where does m become relevant doing orbital problems?

(Claire Woolson Dis. 3J)

Christine Wastila 1H
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Joined: Fri Sep 29, 2017 7:04 am

Re: Quantum Number m

Postby Christine Wastila 1H » Wed Nov 01, 2017 8:25 pm

There are two m values: ml and ms (l and s are subscripts). ml describes which orbital in a subshell an electron occupies and ms describes the spin.

Depending on which orbital and which subshell the electron is in, ml will have one of these values.
s: ml=o (one possible orbital)
p: ml=-1,0,+1 (px, py, or pz)
d: ml=-2,-1,0,+1,+2
f: ml=-3,-2,-1,0,+1,+2,+3

ms is either +1/2 or -1/2 depending on whether or not the electron is spin up or spin down.

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