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Radium (88 Ra) has no stable or nearly stable isotopes, and thus a standard atomic weight cannot be given. The longest lived, and most common, isotope of radium is 226 Ra with a half-life of 1600 years. 226 Ra occurs in the decay chain of 238 U (often referred to as the radium series). Radium has 34 known isotopes from 201 Ra to 234 Ra.
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.
Template: Infobox radium isotopes. ... isotopes= List of main isotopes, ... names symbol wl enwiki NUBASE code-id A, Z. decay mode (Q1048111)
At least 12 nuclear isomers have been reported, the most stable of which is radium-205m with a half-life between 130~230 milliseconds; this is still shorter than twenty-four ground-state radium isotopes. [2] 226 Ra is the most stable isotope of radium and is the last isotope in the (4 n + 2) decay chain of uranium-238 with a half-life of over a ...
No isotopes known, Isobox does not exist: local input, per Infobox. For example: Transclusion of the isobox is suppressed (no redlink), E119: |theoretical isotopes comment=Experiments and theoretical calculations Applied: E119 and up: have no Isobox, so no isotopes lists is shown—at all. Instead, the parametertext is shown as present.
Pages in category "Isotopes of radium" The following 59 pages are in this category, out of 59 total. This list may not reflect recent changes. ...
The decay-chain of uranium-238, which contains radium-226 as an intermediate decay product. 226 Ra occurs in the decay chain of uranium-238 (238 U), which is the most common naturally occurring isotope of uranium. It undergoes alpha decay to radon-222, which is also radioactive; the decay chain ultimately terminates at lead-206.
Pages in category "Lists of isotopes by element" The following 122 pages are in this category, out of 122 total. ... Isotopes of radium; Isotopes of radon; Isotopes ...