I'm trying to think about what it is I should be considering before I start throwing up some maths.(adsbygoogle = window.adsbygoogle || []).push({});

I'm thinking to assume that the positively charged core is a point charge +e and the electron is uniformly distributed over a sphere of radius R_{s}.

The self energy of the electron distribution, which is repulsive, should be included along with the attraction to the positive core, right?

Now how to go about calculating the electron's self energy...?

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# Electrostatic energy per e- for an alkali metal

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