MSE 310/ECE 340
Dept. of Materials Science & Engineering
Electrical Properties of Materials
Fall 2011/Bill Knowlton
1
Problem Set 4 Solutions
(Show all work for all problems)
1.
In class, we considered the radial wave function of an electron in a hydrogen atom given by:
o
r
a
r
e
a.
Explain the symmetry (i.e., geometry) that the electron experiences. That is, if you were to
normalize the wave function, what coordinate system would you use? Explain.
Since a hydrogen atom is a sphere, the easiest coordinates to use to integrate
over a sphere would be to use spherical or polar coordinates.

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