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Atomic and molecular spectra refer to the characteristic patterns of electromagnetic radiation emitted or absorbed by atoms and molecules. These spectra are a result of the interactions between electrons, nuclei, and other particles within the atom or molecule. The study of these spectra is crucial in understanding various phenomena, such as: Atomic And Molecular Spectra Laser By Rajkumar Pdf
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: Explains L-S and j-j couplings , Hund’s rules, and the derivation of spectroscopic term symbols. These spectra are a result of the interactions
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: Detailed look at energy level shifts under electric fields.