The wave functions for the atoms Be, B, C, N, O, F, Ne, are written as simple analytic expressions with several parameters. The best values of these parameters are then determined by the variation method. In the final wave functions the effective quantum number is very nearly two, the radial node is so small as to have little effect upon the charge distribution, the coefficient in the exponential is related to an empirical "mean effective charge."

• Received 26 May 1930

DOI:https://doi.org/10.1103/PhysRev.36.51