Effect of quantum-mechanical symmetry on the geometric structures of intrashell states of three-valence-electron atoms

The effect of quantum-mechanical symmetry on the geometric structures and internal motions of the intrashell states of three-valence-electron atoms is investigated with a model where the core and all the radial degrees of freedom of the valence electrons are frozen. A number of correlative densities have been defined and calculations have been carried out for the eight N=2 intrashell states of boron as examples. For each state, the most probable shape, the preference of orientation, and the favorable modes of internal motion have been found