Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Optical Spectroscopy and Atomic Structure

  1. Nov 18, 2008 #1
    1. The problem statement, all variables and given/known data

    Calculate the energy and radius for each of the five lowest (n = 1,2,3,4,5) electron orbits in a Helium atom with only one electron. Enter the energy as a positive value in units of "eV" and the radius in units of "nm". Hint: The Helium nucleus has 2 protons so Z = 2 and the ground state energy of Helium will be E0 = k(Ze)2/2r.

    If n=2, find E and r1

    2. Relevant equations



    3. The attempt at a solution

    I know how to answer the question, but I need help with finding the ground Energy E0 of Helium. I keep ending up with incorrect answers using that equation given in the problem, can anyone help me solve for the ground energy of Helium?
     
  2. jcsd
  3. Nov 18, 2008 #2

    G01

    User Avatar
    Homework Helper
    Gold Member

    Your using the correct formula.

    In order to find your mistake, I'll have to see your calculations.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook