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    Principal and Orbital QN

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    Find the following:

    <r> for the 2p0
    <r2> for the 2p1

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    Solution Preview

    Please see the attached file.

    2p means n=2 and l=1
    n is te principal QN and l is the orbital QN

    For n = 1,2, 3 , l can take 0,1,2...(n-1) values
    Similarly ml can take -l , 0,- l values. Here is the magnetic orbital QN
    For each magnetic QN, there can be 2 spin states +1/2 and -1/2.
    So when you say 2p0, the 0 ...

    Solution Summary

    This solutions provides a detailed explanation and breakdown in 264 words of the meaning of 2p, including orbital and principal QN. The solution for r is shown through the use of a radial wave function.