GR8677 #84



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Comments 
andyferd 20101112 17:35:33  When is it correct to assume ETS is asking for the spectroscopic notation of the electron rather than the atom? In a problem on a different test they give the spectroscopic notation of an atom and ask for the state of the electron after a transition (I can't remember which other practice test it is)   faith 20101023 23:51:18  there's ambiguity in yosun's solution although it too arrives at the correct answer.
for J
>half filled shell, J=L+S
< half filled shell, J=LS
=half filled shell, J=S (since no net orbital momentum)
hence knowing just the value spin which is 1/2, will immediately gives the answer, B. ( and the valence electron is in sub shell s will give notation S)
to clarify S notation can be a lil confusing. S represent spins while S also is use to represent the sub shell s.
  wikiwert 20100915 21:55:13  This excercise is solved using Hund´s Rule; this should be mentioned in the solution (for other atoms, other problems arise, as the one mentioned by student2008).   student2008 20081014 03:02:16  Yosun, you're not quite right writing , since may take any of the values in the range , separated by 1.
Otherwise, the information about J would be redundant.  

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