==See also==* Isotope geochemistry* List of elements by stability of isotopes* List of nuclides (901 nuclides in order of stability, all with half-lives > one hour)* Mononuclidic element* Periodic table* Primordial nuclide* Radionuclide* Stable isotope ratio* Table of nuclides== References ==== Book references ==== External links ==* The LIVEChart of Nuclides - IAEA* AlphaDelta: Stable Isotope fractionation calculator*National Isotope Development Center Reference information on isotopes, and coordination and management of isotope production, availability, and distribution*Isotope Development & Production for Research and Applications (IDPRA) U.S. Department of Energy program for isotope production and production research and development* Isosciences Use and development of stable isotope labels in synthetic and biological molecules
*جدول تناوبی*ایزوتوپ پرتوزا*هسته دیرینه==منابع==* The LIVEChart of Nuclides - IAEAAlphaDelta: Stable Isotope fractionation calculator - http://www2.ggl.ulaval.ca/cgi-bin/isotope/generisotope.cgi*National Isotope Development Center Reference information on isotopes, and coordination and management of isotope production, availability, and distribution*Isotope Development & Production for Research and Applications (IDPRA) U.S. Department of Energy program for isotope production and production research and development* Isosciences Use and development of stable isotope labels in synthetic and biological molecules