+19f, or Fluorine-19 (¹⁹F), is the only stable and naturally abundant isotope of [Fluorine](/wiki/Fluorine). Its unique nuclear spin property makes it highly valuable in [NMR Spectroscopy](/wiki/NMR) for chemical analysis and medical imaging. This nucleus is a key component in many organic and inorganic compounds.
+## See also
+- [Isotope](/wiki/Isotope)
+- [Chemistry](/wiki/Chemistry)
+- [Spectroscopy](/wiki/Spectroscopy)
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