+Ce3 refers to the trivalent [Cerium](/wiki/cerium) ion, a key state for this rare earth element. Known for its unique optical properties, Ce3 is vital in [Fluorescence](/wiki/fluorescence) and advanced materials. Its electron structure allows for strong light absorption and emission, making it useful in phosphors and lasers.
+## See also
+- [Lanthanides](/wiki/lanthanides)
+- [Rare Earth](/wiki/rare_earth)
+- [Spectroscopy](/wiki/spectroscopy)
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