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This table lists the mass and percent natural abundance for the stable nuclides. The mass of the longest lived isotope is given for elements without a stable nuclide.
LiveChart is an interactive chart that presents the nuclear structure and decay properties of all known nuclides through a user-friendly graphical interface.
13 maj 2019 · The main focus of this Chart is to provide structured, accurate information on the half-lives and decay modes, as well as energies of the emitted radiation for over 4000 experimentally observed...
Carbon-11 or 11 C is a radioactive isotope of mass 11 of the element carbon, which has a half-life of about 20, 5 minutes decays to boron-11. The atomic nucleus of the nuclide is made up of 5 neutrons and the 6 element-specific protons.
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Locate the desired nuclide by dragging the chart or the horizontal slider. Click the nuclide to see its nuclear property and list of evaluations. On the list of evaluated nuclear data libraries, click the '+' sign to see the list of available reactions for the desired evaluation.
Since 1931, the Commission regularly publishes the critical evaluation of isotopic abundances of elements. These values form basis for the standard atomic weights of elements. Below is the current table of Isotopic Compositions of the Elements.
