SEARCH Articles Figures Tables 18 Electron rule Electronic and vibronic selection rules Electronic energy transfer mechanism selection rules Electronic excitation energy selection rules Electronic selection rules atoms Electronic selection rules diatomics Electronic selection rules polyatomics Electronic spectroscopy selection rules Electronic transitions selection rules Electronic transitions, intensity selection rules Exact selection rules for electronic transitions Many-Electron Atoms Selection Rules and Spectra Selection rules Selection rules for electronic Selection rules for electronic transitions Selection rules many-electron atoms The Selection Rules for Electronic Transitions