SEARCH Articles Figures Tables Hypothetical molecule with nuclei , J and two electrons, 1, 2, and interparticle separations as shown. [Publishers Imprint] See Also: Hypothetical molecule with nuclei , J and two electrons, 1, 2, and interparticle separations as shown. Hypothetical molecule with nuclei , J and two electrons, 1, 2, and interparticle separations as shown.