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A chart or table of nuclides maps the nuclear, or radioactive, behavior of nuclides, as it distinguishes the isotopes of an element.It contrasts with a periodic table, which only maps their chemical behavior, since isotopes (nuclides that are variants of the same element) do not differ chemically to any significant degree, with the exception of hydrogen.
The darker more stable isotope region departs from the line of protons (Z) = neutrons (N), as the element number Z becomes larger. This is a list of chemical elements by the stability of their isotopes. Of the first 82 elements in the periodic table, 80 have isotopes considered to be stable. [1] Overall, there are 251 known stable isotopes in ...
An isotope table with clickable information on every isotope and its decay routes is available at chemlab.pc.maricopa.edu; An example of free Universal Nuclide Chart with decay information for over 3000 nuclides is available at Nucleonica.net. app for mobiles: Android or Apple - for PC use The Live Chart of Nuclides - IAEA
This represents isotopes of the first 105 elements, except for elements 87 , 102 and 104 (rutherfordium). At least 3,300 nuclides have been experimentally characterized [1] (see List of radioactive nuclides by half-life for the nuclides with decay half-lives less than one hour).
Pages in category "Lists of isotopes by element" The following 122 pages are in this category, out of 122 total. This list may not reflect recent changes. A.
Radioactive isotope table "lists ALL radioactive nuclei with a half-life greater than 1000 years", incorporated in the list above. The NUBASE2020 evaluation of nuclear physics properties F.G. Kondev et al. 2021 Chinese Phys. C 45 030001. The PDF of this article lists the half-lives of all known radioactives nuclides.
Complete table of nuclides Potassium-40 ( 40 K ) is a long lived and the main naturally occurring radioactive isotope of potassium . Its half-life is 1.25 billion years.
Complete table of nuclides Bismuth-209 ( 209 Bi) is an isotope of bismuth , with the longest known half-life of any radioisotope that undergoes α-decay ( alpha decay ). It has 83 protons and a magic number [ 2 ] of 126 neutrons, [ 2 ] and an atomic mass of 208.9803987 amu (atomic mass units).