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Its most stable isotope is 223 Fr with a half-life of 22 minutes, occurring in trace quantities in nature as an intermediate decay product of 235 U. Of elements whose most stable isotopes have been identified with certainty, francium is the most unstable.
Pages in category "Isotopes of francium" The following 72 pages are in this category, out of 72 total. This list may not reflect recent changes. ...
Francium-223 is the most stable isotope, with a half-life of 21.8 minutes, [8] and it is highly unlikely that an isotope of francium with a longer half-life will ever be discovered or synthesized. [22] Francium-223 is a fifth product of the uranium-235 decay series as a daughter isotope of actinium-227; thorium-227 is the more common daughter. [23]
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.
Main isotopes of francium; Main isotopes [1] Decay; abundance half-life (t 1/2) mode product; 212 Fr synth: 20.0 min: ... isotopes= List of main isotopes, see below
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 ...
Isotopes of francium. Main isotopes [3] Decay; abundance half-life (t 1/2) mode product; 212 Fr synth: 20.0 min:
Pages in category "Lists of isotopes by element" The following 122 pages are in this category, out of 122 total. ... Isotopes of fluorine; Isotopes of francium; G.