j-j coupling

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A type of coupling occurring between electrons in atoms and nucleons in nuclei, in which the energies associated with the spin-orbit interactions are much higher than the energies associated with electrostatic repulsion. Multiplets of many-electron atoms having a large atomic number are characterized by j-j coupling. The multiplets of many atoms and nuclei are intermediate between j-j coupling and Russell-Saunders coupling, a state called intermediate coupling.

Subjects: Physics — Chemistry.

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