Most naturally occurring nuclides are stable (about 251; see list at the end of this article), and about 35 more (total of 286) are known to be … See more

It is expected that improvement of experimental sensitivity will allow discovery of very mild radioactivity of some isotopes now considered stable. For example, in 2003 it … See more

The primordial radionuclides have been included for comparison; they are italicized and offset from the list of stable nuclides proper.
Abbreviations for predicted unobserved decay:
α for alpha decay, … See more

• 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, … See more

Of the known chemical elements, 80 elements have at least one stable nuclide. These comprise the first 82 elements from hydrogen to lead, with the two exceptions, technetium (element 43) and promethium (element 61), that do not have any stable nuclides. As of … See more

• Isotope geochemistry
• List of elements by stability of isotopes
• List of nuclides (991 nuclides in order of stability, all with half-lives over one hour)
• Mononuclidic element See more

• Various (2002). Lide, David R. (ed.). Handbook of Chemistry & Physics (88th ed.). CRC. ISBN 978-0-8493-0486-6. OCLC See more