Talk:Isotopes of aluminium: Difference between revisions
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===Al-26 Entries are inconsistent=== |
===Al-26 Entries are inconsistent=== |
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The infobox says Al-26 has positron, EC, and gamma decays, but the List of Isotopes lists only positron decay. This is inconsistent. If it does actually have 3 decay modes, the decay fractions should be listed. |
The infobox says Al-26 has positron, EC, and gamma decays, but the List of Isotopes lists only positron decay. This is inconsistent. If it does actually have 3 decay modes, the decay fractions should be listed. |
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I very much doubt Al-26 has a gamma decay mode of its own. It has gammas emission from the decays of the excited daughter nucleus [http://sci.esa.int/integral/48046-radioactive-decay-of-aluminium-26/ Mg-26*]. |
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[[User:Pulu|Pulu]] ([[User talk:Pulu|talk]]) 17:47, 12 June 2019 (UTC) |
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== External links modified == |
== External links modified == |
Revision as of 17:53, 12 June 2019
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This article is part of Wikipedia:Wikiproject Isotopes. Please keep style and phrasings consistent across the set of pages. For later reference and improved reliability, data from all considered multiple sources is collected here. References are denoted by these letters:
- (A) G. Audi, O. Bersillon, J. Blachot, A.H. Wapstra. The Nubase2003 evaluation of nuclear and decay properties, Nuc. Phys. A 729, pp. 3-128 (2003). — Where this source indicates a speculative value, the # mark is also applied to values with weak assignment arguments from other sources, if grouped together. An asterisk after the A means that a comment of some importance may be available in the original.
- (B) National Nuclear Data Center, Brookhaven National Laboratory, information extracted from the NuDat 2.1 database. (Retrieved Sept. 2005, from the code of the popup boxes).
- (C) David R. Lide (ed.), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes. — The CRC uses rounded numbers with implied uncertainties, where this concurs with the range of another source it is treated as exactly equal in this comparison.
- (D) More specific level data from reference B's Levels and Gammas database.
- (E) Same as B but excitation energy replaced with that from D.
Z N refs symbol half-life spin excitation energy 13 8 A |Al-21 |<35 ns |1/2+# 13 8 B |Al-21 |<35 ns |(5/2+) 13 8 C |Al-21 |<0.035 µs | 13 9 AB |Al-22 |59(3) ms |(3)+ 13 9 C |Al-22 |59. ms |4+ 13 10 A |Al-23 |470(30) ms |5/2+# 13 10 B |Al-23 |0.47(3) s |3/2+ 13 10 C |Al-23 |0.47 s | 13 10 C |Al-23m |~0.35 s | 13 11 AB |Al-24 |2.053(4) s |4+ 13 11 C |Al-24 |2.07 s |4+ 13 11 AD |Al-24m |131.3(25) ms |1+ |425.8(1) keV 13 11 C |Al-24m |0.129 s | 13 12 AB |Al-25 |7.183(12) s |5/2+ 13 12 C |Al-25 |7.17 s |5/2+ 13 13 AB |Al-26 |7.17(24)E+5 a |5+ 13 13 C |Al-26 |7.1E+5 a |5+ 13 13 A |Al-26m |6.3452(19) s |0+ |228.305(13) keV 13 13 C |Al-26m |6.345 s |0+ 13 14 ABC |Al-27 |STABLE |5/2+ 13 15 AB |Al-28 |2.2414(12) min |3+ 13 15 C |Al-28 |2.25 min |3+ 13 16 AB |Al-29 |6.56(6) min |5/2+ 13 16 C |Al-29 |6.5 min |5/2+ 13 17 AB |Al-30 |3.60(6) s |3+ 13 17 C |Al-30 |3.68 s |3+ 13 18 AB |Al-31 |644(25) ms |(3/2,5/2)+ 13 18 C |Al-31 |0.64 s |5/2+ 13 19 A |Al-32 |31.7(8) ms |1+ 13 19 BC |Al-32 |33(4) ms |1+ 13 19 A |Al-32m |200(20) ns |(4+) |955.7(4) keV 13 19 D |Al-32m |200(20) ns | |955.7(4) keV 13 20 AB |Al-33 |41.7(2) ms |(5/2+)# 13 20 C |Al-33 |41.7 ms | 13 21 A |Al-34 |56.3(5) ms |4-# 13 21 B |Al-34 |42(6) ms | 13 21 C |Al-34 |56. ms |4 13 22 A |Al-35 |38.6(4) ms |5/2+# 13 22 B |Al-35 |38.6(4) ms | 13 22 C |Al-35 |39. ms |5/2+ 13 23 ABC |Al-36 |90(40) ms | 13 24 A |Al-37 |20# ms [>1 µs] |3/2+# 13 24 B |Al-37 |10.7(13) ms | 13 24 C |Al-37 |>1 µs | 13 25 A |Al-38 |40# ms [>200 ns] | 13 25 B |Al-38 |7.6(6) ms | 13 25 C |Al-38 |>0.2 µs | 13 26 A |Al-39 |10# ms [>200 ns] |3/2+# 13 26 B |Al-39 |7.6(16) ms |(3/2+) 13 26 C |Al-39 |>0.2 µs | 13 27 A* |Al-40 |10# ms [>260 ns] | 13 27 BC |Al-40 |>260 ns | 13 28 A* |Al-41 |2# ms [>260 ns] |3/2+# 13 28 B |Al-41 |>260 ns | 13 29 AB |Al-42 |1# ms |
Femto 13:21, 18 November 2005 (UTC)
Talk
Al42 and Al43 in the news: http://news.bbc.co.uk/2/hi/science/nature/7061947.stm 89.137.179.191 05:40, 29 October 2007 (UTC)
Al-26 Entries are inconsistent
The infobox says Al-26 has positron, EC, and gamma decays, but the List of Isotopes lists only positron decay. This is inconsistent. If it does actually have 3 decay modes, the decay fractions should be listed. I very much doubt Al-26 has a gamma decay mode of its own. It has gammas emission from the decays of the excited daughter nucleus Mg-26*. Pulu (talk) 17:47, 12 June 2019 (UTC)
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