Template:Actinides vs fission products

Actinides and fission products by half-life v t e
Actinides^[1] by decay chain				Half-life range (a)	Fission products of ²³⁵U by yield^[2]
4n	4n + 1	4n + 2	4n + 3	Half-life range (a)	4.5–7%	0.04–1.25%	<0.001%
Template:Iso1				4–6 a		Template:Iso1
Template:Iso1^[3]				> 9 a
Template:Iso1	Template:Iso1	Template:Iso1	Template:Iso1	10–29 a	Template:Iso1	Template:Iso1	Template:Iso1
Template:Iso1		Template:Iso1	Template:Iso1	29–97 a	Template:Iso1	Template:Iso1	Template:Iso1
	Template:Iso1	Template:Iso1		141–351 a	No fission products have a Template:Nobr in the range of 100 a–210 ka ...
	Template:Iso1		Template:Iso1^[4]	430–900 a
		Template:Iso1	Template:Iso1	1.3–1.6 ka
Template:Iso1	Template:Iso1	Template:Iso1	Template:Iso1	4.7–7.4 ka
	Template:Iso1	Template:Iso1		8.3–8.5 ka
			Template:Iso1	24.1 ka
		Template:Iso1	Template:Iso1	32–76 ka
Template:Iso1	Template:Iso1	Template:Iso1		150–250 ka	Template:Iso1	Template:Iso1
Template:Iso1		Template:Iso1		327–375 ka		Template:Iso1
				1.33 Ma	Template:Iso1
	Template:Iso1			1.61–6.5 Ma	Template:Iso1	Template:Iso1
Template:Iso1			Template:Iso1	15–24 Ma		Template:Iso1
Template:Iso1				80 Ma	... nor beyond 15.7 Ma^[5]
Template:Iso1		Template:Iso1	Template:Iso1	0.7–14.1 Ga	... nor beyond 15.7 Ma^[5]
Template:Ubli

References

↑ Plus radium (element 88). While actually a sub-actinide, it immediately precedes actinium (89) and follows a three-element gap of instability after polonium (84) where no nuclides have half-lives of at least four years (the longest-lived nuclide in the gap is radon-222 with a half life of less than four days). Radium's longest lived isotope, at 1,600 years, thus merits the element's inclusion here.
↑ Specifically from thermal neutron fission of uranium-235, e.g. in a typical nuclear reactor.
↑ Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).
"The isotopic analyses disclosed a species of mass 248 in constant abundance in three samples analysed over a period of about 10 months. This was ascribed to an isomer of Bk²⁴⁸ with a half-life greater than 9 [years]. No growth of Cf²⁴⁸ was detected, and a lower limit for the β⁻ half-life can be set at about 10⁴ [years]. No alpha activity attributable to the new isomer has been detected; the alpha half-life is probably greater than 300 [years]."
↑ This is the heaviest nuclide with a half-life of at least four years before the "sea of instability".
↑ Excluding those "classically stable" nuclides with half-lives significantly in excess of ²³²Th; e.g., while ^113mCd has a half-life of only fourteen years, that of ¹¹³Cd is eight quadrillion years.