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A table or chart of nuclides is a two-dimensional graph of isotopes of the elements, in which one axis represents the number of neutrons (symbol N) and the other represents the number of protons (atomic number, symbol Z) in the atomic nucleus. Each point plotted on the graph thus represents a nuclide of a known or hypothetical chemical element.
Some airlines omit the row number 13, reputedly because of a widespread superstition that the number is unlucky. This is the case with Lufthansa, for example (as shown on the Lufthansa A321/100 seating plan). Emirates used to have a row 13, but on their latest A380 aircraft have removed it (as shown on Emirates A380-800 seating plan).
The template provides a standardised table header for a List of isotopes, as is used in each of the 118 Isotopes of <element> articles. Parameters allow for adjustment of the table header structure, references and table footnotes. This header does not change existing rows: values, isotope-specific footnotes, structure, nor split decay routes ...
Interactive Chart of Nuclides (Brookhaven National Laboratory) The Lund/LBNL Nuclear Data Search; 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.
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.
This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days and years. Current methods make it difficult to measure half-lives between approximately 10 −19 and 10 −10 seconds.
However, it is possible that some isotopes that are now considered stable will be revealed to decay with extremely long half-lives (as with 209 Bi). This list depicts what is agreed upon by the consensus of the scientific community as of 2023. [1] For each of the 80 stable elements, the number of the stable isotopes is given.
Isotopes are never separated in the periodic table; they are always grouped together under a single element. When atomic mass is shown, it is usually the weighted average of naturally occurring isotopes; but if no isotopes occur naturally in significant quantities, the mass of the most stable isotope usually appears, often in parentheses. [8]