Talk:Isotopes of iodine

From Wikipedia, the free encyclopedia
Jump to: navigation, search
WikiProject Elements / Isotopes  (Rated List-class, Low-importance)
WikiProject icon This article is supported by WikiProject Elements, which gives a central approach to the chemical elements and their isotopes on Wikipedia. Please participate by editing this article, or visit the project page for more details.
 List  This article has been rated as List-Class on the quality scale.
 Low  This article has been rated as Low-importance on the importance scale.
Taskforce icon
This article is also supported by the Isotope Taskforce.
 

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
 53  55 AB  |I-108   |36(6) ms                   |(1)#
 53  55 C   |I-108   |0.04 s                     |
 53  56 A   |I-109   |103(5) µs                  |(5/2+)
 53  56 B   |I-109   |103(5) µs                  |1/2+
 53  56 C   |I-109   |0.11 ms                    |
 53  57 A   |I-110   |650(20) ms                 |1+#
 53  57 BC  |I-110   |0.65(2) s                  |
 53  58 AB  |I-111   |2.5(2) s                   |(5/2+)#
 53  58 C   |I-111   |2.5 s                      |
 53  59 ABC |I-112   |3.42(11) s                 |
 53  60 AB  |I-113   |6.6(2) s                   |5/2+#
 53  60 C   |I-113   |5.9 s                      |
 53  61 AB  |I-114   |2.1(2) s                   |1+
 53  61 C   |I-114   |2.1 s                      |
 53  61 AE  |I-114m  |6.2(5) s                   |(7)              |265.9(5) keV
 53  62 AB  |I-115   |1.3(2) min                 |(5/2+)#
 53  62 C   |I-115   |1.3 min                    |5/2+
 53  63 ABC |I-116   |2.91(15) s                 |1+
 53  63 A   |I-116m  |3.27(16) µs                |(7-)             |400(50)# keV
 53  63 D   |I-116m  |3.27(16) µs                |(7-)             |0+X keV
 53  64 AB  |I-117   |2.22(4) min                |(5/2)+
 53  64 C   |I-117   |2.22 min                   |(5/2+)
 53  65 ABC |I-118   |13.7(5) min                |2-
 53  65 A   |I-118m  |8.5(5) min                 |(7-)             |190.1(10) keV
 53  65 E   |I-118m  |8.5(5) min                 |(7-)             |104.0(20)+X keV
 53  65 C   |I-118m  |8.5 min                    |7-
 53  66 AB  |I-119   |19.1(4) min                |5/2+
 53  66 C   |I-119   |19. min                    |(5/2+)
 53  67 AB  |I-120   |81.6(2) min                |2-
 53  67 C   |I-120   |1.35 h                     |2-
 53  67 A   |I-120m1 |228(15) ns                 |(1+,2+,3+)       |72.61(9) keV
 53  67 D   |I-120m1 |228(15) ns                 |1+,2+,3+         |72.61(9) keV
 53  67 AE  |I-120m2 |53(4) min                  |(7-)             |320(15) keV
 53  67 C   |I-120m2 |53. min                    |
 53  68 ABC |I-121   |2.12(1) h                  |5/2+
 53  68 AD  |I-121m  |9.0(15) µs                 |                 |2376.9(4) keV
 53  69 ABC |I-122   |3.63(6) min                |1+
 53  70 AC  |I-123   |13.2235(19) h              |5/2+
 53  70 B   |I-123   |13.232(6) h                |5/2+
 53  71 ABC |I-124   |4.1760(3) d                |2-
 53  72 ABC |I-125   |59.400(10) d               |5/2+
 53  73 ABC |I-126   |12.93(5) d                 |2-
 53  74 ABC |I-127   |STABLE                     |5/2+
 53  75 ABC |I-128   |24.99(2) min               |1+
 53  75 AD  |I-128m1 |845(20) ns                 |4-               |137.850(4) keV
 53  75 AD  |I-128m2 |175(15) ns                 |(6)-             |167.367(5) keV
 53  76 AB  |I-129   |1.57(4)E+7 a               |7/2+
 53  76 C   |I-129   |1.7E+7 a                   |7/2+
 53  77 ABC |I-130   |12.36(1) h                 |5+
 53  77 AE  |I-130m1 |8.84(6) min                |2+               |39.9525(13) keV
 53  77 C   |I-130m1 |9.0 min                    |2+
 53  77 D   |I-130m2 |133(7) ns                  |(6)-             |69.5865(7) keV
 53  77 D   |I-130m3 |315(15) ns                 |-                |82.3960(19) keV
 53  77 D   |I-130m4 |254(4) ns                  |(6)-             |85.1099(10) keV
 53  78 ABC |I-131   |8.02070(11) d              |7/2+
 53  79 AB  |I-132   |2.295(13) h                |4+
 53  79 C   |I-132   |2.28 h                     |4+
 53  79 AE  |I-132m1 |1.387(15) h                |(8-)             |104(12) keV
 53  79 C   |I-132m1 |1.39 h                     |8-
 53  80 ABC |I-133   |20.8(1) h                  |7/2+
 53  80 AE  |I-133m1 |9(2) s                     |(19/2-)          |1634.174(17) keV
 53  80 C   |I-133m1 |9. s                       |19/2-
 53  80 D   |I-133m2 |~170 ns                    |(15/2-)          |1729.160(17) keV
 53  81 AB  |I-134   |52.5(2) min                |(4)+
 53  81 C   |I-134   |52.6 min                   |4+
 53  81 A   |I-134m  |3.60(10) min               |(8)-             |316.49(22) keV
 53  81 E   |I-134m  |3.52(4) min                |(8)-             |316.49(22) keV
 53  81 C   |I-134m  |3.7 min                    |8-
 53  82 ABC |I-135   |6.57(2) h                  |7/2+
 53  83 AB  |I-136   |83.4(10) s                 |(1-)
 53  83 C   |I-136   |1.39 min                   |2-
 53  83 A   |I-136m  |46.9(10) s                 |(6-)             |650(120) keV
 53  83 E   |I-136m  |46.9(10) s                 |(6-)             |640(110) keV
 53  83 C   |I-136m  |47. s                      |6-
 53  84 A   |I-137   |24.13(12) s                |(7/2+)
 53  84 BC  |I-137   |24.5(2) s                  |(7/2+)
 53  85 AB  |I-138   |6.23(3) s                  |(2-)
 53  85 C   |I-138   |6.5 s                      |2-
 53  86 A   |I-139   |2.282(10) s                |7/2+#
 53  86 B   |I-139   |2.280(11) s                |(7/2+)
 53  86 C   |I-139   |2.30 s                     |
 53  87 A   |I-140   |860(40) ms                 |(3)(-#)
 53  87 BC  |I-140   |0.86(4) s                  |(3)
 53  88 A   |I-141   |430(20) ms                 |7/2+#
 53  88 B   |I-141   |0.43(2) s                  |
 53  88 C   |I-141   |0.45 s                     |
 53  89 A   |I-142   |~200 ms                    |2-#
 53  89 BC  |I-142   |~0.2 s                     |
 53  90 A   |I-143   |100# ms [>300 ns]          |7/2+#
 53  90 BC  |I-143   |>150 ns                    |
 53  91 A   |I-144   |50# ms [>300 ns]           |1-#
 53  91 B   |I-144   |>300 ns                    |
 53  91 C   |I-144   |>0.15 µs                   |

Femto 12:08, 15 November 2005 (UTC)

Talk[edit]


It is interesting to note that the existence of the single stable isotope of 53I Iodine is due to a trivial favorable difference in stability between the 2 isotopes EO54Xe127 (-88321kev) and OE53I127 (-88983kev). This results in a nuclear structure change such that a nucleus with 54 deuterons + 19 extra neutrons (EO54Xe127) is changed to a nucleus (OE53I127) with only 53 deuterons + 21 extra neutrons. The decay mode is supposed to be by electron capture of an orbital electron by one of its protons. This trivial difference is what prevents the element 54Xe Xenon from having 10 stable isotopes, the same as does 50Sn Tin.WFPM (talk) 09:42, 25 August 2011 (UTC)

On the other hand at the higher end of the range of isotopes, the isotope OE53I135 with 53 deuterons and 29 extra neutrons is changed to EO54Xe135 with 54 deuterons and only 27 extra neutrons due to a (Nubase reported) difference of 83790 versus 86442 Kev. The change is reported as an (B-) electron emission by one of the neutrons which then is converted to a proton. This is the opposite kind of change from that for OE53I127 to EO54Xe127.WFPM (talk) 16:11, 25 August 2011 (UTC)

Then, after becoming EO54Xe135, the Xe isotope further changes by B- emission to EE54Xe136, with 54 deuterons and 28 excess neutrons and becomes the highest mass stable isotope of Xenon and the series. Then, starting with 55Cs (Cesium), The number of permissible extra neutrons for atomic stability actually decreases for a 5 element period until the element 60Nd (Neodymium), which is stable with both 28 extra neutrons @ EE60Nd148 and with 30 extra neutrons @ EE60Nd150.WFPM (talk) 03:05, 27 August 2011 (UTC)

Besides the low stability half-life of OO53I128, the half-lives of OO53I122, OO53I116, and OO53I114 are below the rest of the stability profile line for the rest of the OO53I isotopes.WFPM (talk) 01:14, 20 April 2013 (UTC)