Difference between revisions of "Template:Actinides vs fission products"

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blackwiki>DocWatson42
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| {{Iso1|[[Californium-250|250]]|Cf|1}}
 
| {{Iso1|[[Californium-250|250]]|Cf|1}}
 
| {{Iso1|[[Actinium-227|227]]|Ac<sup>№</sup>|1}}
 
| {{Iso1|[[Actinium-227|227]]|Ac<sup>№</sup>|1}}
! style="text-align:center; background:#e8e8e8;" | 10&nbsp;– 29
+
! style="text-align:center; background:#e8e8e8;" | 10–29
 
| {{Iso1|[[Strontium-90|90]]|Sr|1}}
 
| {{Iso1|[[Strontium-90|90]]|Sr|1}}
 
| {{Iso1|[[Krypton-85|85]]|Kr|1}}
 
| {{Iso1|[[Krypton-85|85]]|Kr|1}}
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| {{Iso1|[[Plutonium-238|238]]|Pu|1}}
 
| {{Iso1|[[Plutonium-238|238]]|Pu|1}}
 
| {{Iso1|[[Curium-243|243]]|Cm<sup>ƒ</sup>|1}}
 
| {{Iso1|[[Curium-243|243]]|Cm<sup>ƒ</sup>|1}}
! style="text-align:center; background:#e8e8e8;" | 29&nbsp;– 97
+
! style="text-align:center; background:#e8e8e8;" | 29–97
 
| {{Iso1|[[Cs-137|137]]|Cs|1}}
 
| {{Iso1|[[Cs-137|137]]|Cs|1}}
 
| {{Iso1|[[Samarium-151|151]]|Sm<sup>þ</sup>|1}}
 
| {{Iso1|[[Samarium-151|151]]|Sm<sup>þ</sup>|1}}
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| {{Iso1|[[Americium-242m|242m]]|Am<sup>ƒ</sup>|2}}
 
| {{Iso1|[[Americium-242m|242m]]|Am<sup>ƒ</sup>|2}}
 
|
 
|
! style="text-align:center; background:#e8e8e8;" | 141&nbsp;– 351
+
! style="text-align:center; background:#e8e8e8;" | 141–351
 
| rowspan="7" colspan="4" align="center" bgcolor=#ffffdd style="border-width:1px; border-style:dashed" |
 
| rowspan="7" colspan="4" align="center" bgcolor=#ffffdd style="border-width:1px; border-style:dashed" |
 
No fission products<br/>
 
No fission products<br/>
 
have a half-life<br/>
 
have a half-life<br/>
 
in the range of<br/>
 
in the range of<br/>
100&nbsp;– 210k years…
+
100–210k years…
 
|-
 
|-
 
|
 
|
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|
 
|
 
| {{Iso1|[[Californium-251|251]]|Cf<sup>ƒ</sup>|2}}<ref>This is the heaviest isotope with a half-life of at least four years before the "[[Sea of Instability]]".</ref>
 
| {{Iso1|[[Californium-251|251]]|Cf<sup>ƒ</sup>|2}}<ref>This is the heaviest isotope with a half-life of at least four years before the "[[Sea of Instability]]".</ref>
! style="text-align:center; background:#e8e8e8;" | 430&nbsp;– 900
+
! style="text-align:center; background:#e8e8e8;" | 430–900
 
|-
 
|-
 
|
 
|
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| {{Iso1|[[Radium-226|226]]|Ra<sup>№</sup>|3}}
 
| {{Iso1|[[Radium-226|226]]|Ra<sup>№</sup>|3}}
 
| {{Iso1|[[Berkelium-247|247]]|Bk|3}}
 
| {{Iso1|[[Berkelium-247|247]]|Bk|3}}
! style="text-align:center; background:#e8e8e8;" | 1.3k&nbsp;– 1.6k
+
! style="text-align:center; background:#e8e8e8;" | 1.3k–1.6k
 
|-
 
|-
 
| {{Iso1|[[Plutonium-240|240]]|Pu|3}}
 
| {{Iso1|[[Plutonium-240|240]]|Pu|3}}
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| {{Iso1|[[Curium-246|246]]|Cm|3}}
 
| {{Iso1|[[Curium-246|246]]|Cm|3}}
 
| {{Iso1|[[Americium-243|243]]|Am|3}}
 
| {{Iso1|[[Americium-243|243]]|Am|3}}
! style="text-align:center; background:#e8e8e8;" | 4.7k&nbsp;– 7.4k
+
! style="text-align:center; background:#e8e8e8;" | 4.7k–7.4k
 
|-
 
|-
 
|
 
|
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| {{Iso1|[[Curium-250|250]]|Cm|3}}
 
| {{Iso1|[[Curium-250|250]]|Cm|3}}
 
|
 
|
! style="text-align:center; background:#e8e8e8;" | 8.3k&nbsp;– 8.5k
+
! style="text-align:center; background:#e8e8e8;" | 8.3k–8.5k
 
|-
 
|-
 
|
 
|
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| {{Iso1|[[Thorium-230|230]]|Th<sup>№</sup>|4}}
 
| {{Iso1|[[Thorium-230|230]]|Th<sup>№</sup>|4}}
 
| {{Iso1|[[Protactinium-231|231]]|Pa<sup>№</sup>|4}}
 
| {{Iso1|[[Protactinium-231|231]]|Pa<sup>№</sup>|4}}
! style="text-align:center; background:#e8e8e8;" | 32k&nbsp;– 76k
+
! style="text-align:center; background:#e8e8e8;" | 32k–76k
 
|-
 
|-
 
| {{Iso1|[[Neptunium-236|236]]|Np<sup>ƒ</sup>|5}}
 
| {{Iso1|[[Neptunium-236|236]]|Np<sup>ƒ</sup>|5}}
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|
 
|
 
|
 
|
! style="text-align:center; background:#e8e8e8;" | 2.1M&nbsp;– 6.5M
+
! style="text-align:center; background:#e8e8e8;" | 2.1M–6.5M
 
| {{Iso1|[[Cs-135|135]]|Cs<sup>₡</sup>|6}}
 
| {{Iso1|[[Cs-135|135]]|Cs<sup>₡</sup>|6}}
 
| {{Iso1|[[Palladium-107|107]]|Pd|6}}
 
| {{Iso1|[[Palladium-107|107]]|Pd|6}}
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|
 
|
 
| {{Iso1|[[Curium-247|247]]|Cm<sup>ƒ</sup>|7}}
 
| {{Iso1|[[Curium-247|247]]|Cm<sup>ƒ</sup>|7}}
! style="text-align:center; background:#e8e8e8;" | 15M&nbsp;– 24M
+
! style="text-align:center; background:#e8e8e8;" | 15M–24M
 
|
 
|
 
| {{Iso1|[[Iodine-129|129]]|I<sup>₡</sup>|7}}
 
| {{Iso1|[[Iodine-129|129]]|I<sup>₡</sup>|7}}
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| {{Iso1|[[Uranium-238|238]]|U<sup>№</sup>|9}}
 
| {{Iso1|[[Uranium-238|238]]|U<sup>№</sup>|9}}
 
| {{Iso1|[[Uranium-235|235]]|U<sup>ƒ№</sup>|9}}
 
| {{Iso1|[[Uranium-235|235]]|U<sup>ƒ№</sup>|9}}
! style="text-align:center; background:#e8e8e8;" | 0.7G&nbsp;– 14G
+
! style="text-align:center; background:#e8e8e8;" | 0.7G–14G
 
|-
 
|-
 
| colspan=9 style="border-top:1px solid gray; table-layout:fixed; width:100%; background:#ececec; font-size:90%; padding-left:1em;" |
 
| colspan=9 style="border-top:1px solid gray; table-layout:fixed; width:100%; background:#ececec; font-size:90%; padding-left:1em;" |
 
'''Legend''' for superscript symbols<br/>
 
'''Legend''' for superscript symbols<br/>
₡&nbsp; has thermal [[neutron capture]] cross section in the range of 8&nbsp;– 50 barns<br/>
+
₡&nbsp; has thermal [[neutron capture]] cross section in the range of 8–50 barns<br/>
 
ƒ&nbsp; [[fissile]]<br/>
 
ƒ&nbsp; [[fissile]]<br/>
 
m&nbsp; [[Metastable isomer|metastable isomer]]<br/>
 
m&nbsp; [[Metastable isomer|metastable isomer]]<br/>

Revision as of 04:26, 30 October 2013

Actinides and fission products by half-life
Actinides[1] by decay chain Half-life
range (a)
Fission products by yield[2]
4n 4n+1 4n+2 4n+3
4.5–7% 0.04–1.25% <0.001%
228Ra 4 – 6 155Euþ
244Cm 241Puƒ 250Cf 227Ac 10–29 90Sr 85Kr 113mCdþ
232Uƒ 238Pu 243Cmƒ 29–97 137Cs 151Smþ 121mSn
249Cfƒ 242mAmƒ 141–351

No fission products
have a half-life
in the range of
100–210k years…

241Am 251Cfƒ[3] 430–900
226Ra 247Bk 1.3k–1.6k
240Pu 229Th 246Cm 243Am 4.7k–7.4k
245Cmƒ 250Cm 8.3k–8.5k
239Puƒ 24.1k
230Th 231Pa 32k–76k
236Npƒ 233Uƒ 234U 150k – 250k 99Tc 126Sn
248Cm 242Pu 327k – 375k 79Se
1.53M 93Zr
237Np 2.1M–6.5M 135Cs 107Pd
236U 247Cmƒ 15M–24M 129I
244Pu 80M

...nor beyond 15.7M[4]

232Th 238U 235Uƒ№ 0.7G–14G

Legend for superscript symbols
₡  has thermal neutron capture cross section in the range of 8–50 barns
ƒ  fissile
metastable isomer
№  naturally occurring radioactive material (NORM)
þ  neutron poison (thermal neutron capture cross section greater than 3k barns)
†  range 4a – 97a: Medium-lived fission product
‡  over 200ka: Long-lived fission product

References

  1. 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 isotopes have half-lives of at least four years (the longest-lived isotope in the gap is radon-222 with a half life of less than four days). Radium's longest lived isotope, at a notable 1600 years, thus merits the element's inclusion here.
  2. Specifically from thermal neutron fission of U-235, e.g. in a typical nuclear reactor.
  3. This is the heaviest isotope with a half-life of at least four years before the "Sea of Instability".
  4. Excluding those 'classically stable' isotopes with half-lives significantly in excess of 232Th, e.g. while 113mCd has a half-life of only fourteen years, that of 113Cd is nearly eight quadrillion.
Template documentation[view] [edit] [history] [purge]

Usage

Background colors

Half-life color coding in {{Iso1}}
see also: title (mousehover text)
by letter code
example: Gd
- 145Gd < 1 day
V 146Gd 1–10 days
I 149Gd 10–100 days
B 153Gd 100 days–10 a
G 148Gd 10–10,000 a
Y 150Gd 10 ka–103 Ma
O 152Gd > 700 Ma
R 158Gd Stable
Used in:
by number code
0      1–10 years
1 10–100 years
2 100–1k years
3 1k–10k years
4 10k–100k years
5 100k–1M years
6 1M–10M years
7 10M–103M years
8 103M–700M years
9 700M–14G years
Used in:

See also