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  2. List of radioactive nuclides by half-life - Wikipedia

    en.wikipedia.org/wiki/List_of_radioactive...

    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.

  3. Isotopes of carbon - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_carbon

    Carbon (6 C) has 14 known isotopes, from 8 C to 20 C as well as 22 C, of which 12 C and 13 C are stable.The longest-lived radioisotope is 14 C, with a half-life of 5.70(3) × 10 3 years. . This is also the only carbon radioisotope found in nature, as trace quantities are formed cosmogenically by the reactio

  4. List of nuclides - Wikipedia

    en.wikipedia.org/wiki/List_of_nuclides

    This list of nuclides shows observed nuclides that either are stable or, if radioactive, have half-lives longer than one hour. This represents isotopes of the first 105 elements, except for elements 87 ( francium ), 102 ( nobelium ) and 104 ( rutherfordium ).

  5. Table of nuclides - Wikipedia

    en.wikipedia.org/wiki/Table_of_nuclides

    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.

  6. List of companies in the Chicago metropolitan area - Wikipedia

    en.wikipedia.org/wiki/List_of_companies_in_the...

    This is a list of companies in the Chicago metropolitan area. The Chicago metropolitan area – also known as "Chicagoland" – is the metropolitan area associated with the city of Chicago , Illinois , and its suburbs. [ 2 ]

  7. Category:Isotopes - Wikipedia

    en.wikipedia.org/wiki/Category:Isotopes

    Isotopes of carbon (1 C, 23 P) Isotopes of cerium ... This list may not reflect recent ... Isotope; Nuclide * List of radioactive nuclides by half-life; Stable ...

  8. Category:Isotopes of carbon - Wikipedia

    en.wikipedia.org/wiki/Category:Isotopes_of_carbon

    Pages in category "Isotopes of carbon" The following 23 pages are in this category, out of 23 total. This list may not reflect recent changes. ...

  9. Environmental isotopes - Wikipedia

    en.wikipedia.org/wiki/Environmental_isotopes

    Radioactive isotopes are isotopes that will decay into a different isotope. For example, 3 H is a radioactive isotope of hydrogen. It decays into 3 He with a half-life of ~12.3 years. By comparison, stable isotopes do not undergo radioactive decay, and their fixed proportions are measured against exponentially decaying proportions of ...