+**10be** is a rare, [cosmogenic](/wiki/Cosmogenic) radionuclide of [Beryllium](/wiki/Beryllium). Formed by cosmic rays, its slow decay aids in dating Earth's ancient processes.
+## See also
+- [Radionuclide](/wiki/Radionuclide)
+- [Isotope](/wiki/Isotope)
+- [Geochronology](/wiki/Geochronology)
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