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Lighter astatine isotopes have quite high energies of alpha decay, which become lower as the nuclei become heavier. However, astatine-211 has a significantly higher energy than the previous isotope; it has a nucleus with 126 neutrons, and 126 is a magic number (corresponding to a filled neutron shell).
Astatine is an extremely radioactive element; all its isotopes have half-lives of 8.1 hours or less, decaying into other astatine isotopes, bismuth, polonium, or radon. Most of its isotopes are very unstable, with half-lives of seconds or less.
Pages in category "Isotopes of astatine" ... Astatine-223 This page was last edited on 23 January 2021, at 05:47 (UTC). Text is available under the Creative ...
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.
This page uses the meta infobox {{Infobox isotopes (meta)}} for the element isotopes infobox.. This infobox contains the table of § Main isotopes, and the § Standard atomic weight.
Pages in category "Lists of isotopes by element" The following 122 pages are in this category, out of 122 total. ... Isotopes of arsenic; Isotopes of astatine; B ...
Astatine compounds (7 P) I. Isotopes of astatine (79 P) Pages in category "Astatine" The following 3 pages are in this category, out of 3 total.
Isotopes of astatine. Main isotopes [5] Decay; abundance half-life (t 1/2) mode ... No isotopes known, Isobox does not exist: local input, per Infobox. For example: