Moving charges in atoms make magnetic fields that split spectrum peaks {fine structure}| {fine spectra}. Bigger nuclei make bigger magnetic fields and so make larger fine structure. Spin-orbit coupling and Zeeman effect also contribute to fine structure.
Physical Sciences>Physics>Matter>Atom>Wavelength Change>Spectra
5-Physics-Matter-Atom-Wavelength Change-Spectra
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Date Modified: 2022.0224