Analytic Wave Functions. II. Atoms with $1s$, $2s$, $2p$, $3s$, and $3p$ Electrons

The variation program for the computation of atomic wave functions which has been developed and programed for IBM-704 electronic data processing machine is detailed. This calculation has been set up so as to be able to handle atoms having any combination of $1s$, $2s$, $2p$, $3s$, and $3p$ electrons. One example of the program is provided by a calculation of the wave functions for aluminum for all degrees of ionization. Another example is provided by a calculation of the fourteen configurations for oxygen having the electron distribution ${\mathrm{}\left(1s\right)\mathrm{}}^2{\mathrm{}\left(2s\right)\mathrm{}}^2{\mathrm{}\left(2p\right)\mathrm{}}^3\mathrm{}\left(3p\right)\mathrm{}$. Finally, the three ${}_{}{}^3{}_{}{}^{}P$ wave functions thus obtained are combined by means of the configuration interaction.