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Homework Help: What is the angular momentum of an electron

  1. Jun 30, 2008 #1
    What is the angular momentum of an electron in a level with n = 13 in the Bohr hydrogen atom (Planck's constant: h = 6.63 10-34 J s)?

    I used the equation L= mr2ω
    L=nh/2pi

    I solved for r:
    r = n2a where a=5.29•10-11 m

    plugging all these values in, i can't seem to get the right answer for angular momentum. Also what are the units for angular momentum?
     
  2. jcsd
  3. Jul 1, 2008 #2

    Dick

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    Gack! Angular momentum is r x p. r is meters, p is kg*m/sec. But an electron can be in level n=13 with zero angular momentum if it's in an s state. I don't get the question.
     
    Last edited: Jul 1, 2008
  4. Jul 1, 2008 #3

    malawi_glenn

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    He said bohr model, and in that model you don't have s,p,d waves etc.

    but instead, L is quantized as: L = n*hbar

    So that is basically what you need dude
     
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