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destroyer 131 chem

Discussion in 'DAT Discussions' started by pistolpete007, Jun 4, 2008.

  1. pistolpete007

    2+ Year Member

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    which is not a possible ground state configuration?

    a. 3D^6 sublevel w/ 6 unpaired electrons
    b.3D^2 SUBLEVEL W/ 2 UNPAIRED electrons
    c.5D^3 sublevel w/ 3 unpaired electrons
    d.7S^2 sublevel w/ 0 unpaired electrons


    arnt all of these wrong except for see......Im going to use X as an up arrow and Y as a down arrowand im going to use a Z to represent empty orbtals......
    A we have XY X X X X thus 4 UNPAIRED electrons
    in b we have X X Z Z Z.....eventhough there are 3 empty orbitals they are unpaired so it should have 5 unpaired electrons
    C. X X X Z Z still 5 unpaired

    d XY which is correct
     
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  3. happyasaclam88

    7+ Year Member

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    for b and c, the remaining orbitals are empty, not unpaired - that means there's no electrons, so there's none to be unpaired! as far as i can tell, the only incorrect one is A. is that the answer?
     
  4. Doctor PJ

    Doctor PJ Member
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    answer is A. Each orbital gets one electron one at a time. Orbitals with no electrons don't count since they don't have any unpaired electrons. hope that helps!:thumbup:
     

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