Further Concepts in Quantum Mechanics and their Application to Many-electron Atoms

Further Concepts in Quantum Mechanics and their Application to Many-electron Atoms 

In previous chapters we have considered systems for which there is an exact solution to the Schrodinger wave equation, but as we begin to look at atoms containing more than one electron we shall find that it is impossible to solve the Schrodinger equation exactly, and various approximations will have to be introduced to make the problem solvable. Before these are considered it will be useful to look at some basic concepts of quantum mechanics in more detail, so that we can obtain the Schrodinger equation for any system that may be of interest. 

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