How many 3dz2 orbitals have n=3 and l=2?
1 Answer
Nov 9, 2016
You already specified an orbital, so... one...
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The
n=3 , because the3 in front says that. Thus, it is in the 3rd quantum level.l=2 , which corresponds to ad orbital, since the values ofl correspond as(0,1,2,3,4,...)↔(s,p,d,f,g,...) .ml for this orbital is one of the values in the following set:{−2,−1,0,+1,+2} . It does not matter which one, but it is only one of them, since you have specified only oned orbital. That is,ml is known, but is yours to choose, since all the3d orbitals in an atom are the same energy (degenerate).ms requires more information to specify, but it can either be±1/2 in general. It depends on how many electrons were in that orbital to begin with, whether it's spin-up or spin-down for the electron of choice.