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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]
Given that the only source to even mention francium compounds says that none have been made, I think it's better to just leave it out, at least for now.--Cryptic C62 · Talk 17:18, 10 April 2007 (UTC) If reliable sources write that they believe francium will act like caesium, you can, I think, include that fact.
Francium, formerly known as eka-caesium and actinium K, is a chemical element that has the symbol Fr and atomic number 87. It has the lowest known electronegativity and is the second rarest naturally occurring element (after Astatine). Francium is a highly radioactive metal that decays into astatine, radium, and radon.
The transfer takes about 10 −6 seconds; in order to be detected, the nucleus must survive this long. [35] The nucleus is recorded again once its decay is registered, and the location, the energy , and the time of the decay are measured.
Ozempic is good for 56 days once opened, as long as it’s kept in the fridge or at room temperature. Compounded semaglutide is generally good for 28 days in the fridge after the first use.
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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.
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