Talk:Isotopes of technetium

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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
 43  42 A   |Tc-85   |<110 ns                    |1/2-#
 43  42 B   |Tc-85   |~0.5 s                     |
 43  42 C   |Tc-85   |<0.1 ms                    |
 43  43 A   |Tc-86   |55(6) ms                   |(0+)
 43  43 B   |Tc-86   |54(7) ms                   |(0+)
 43  43 C   |Tc-86   |0.05 s                     |
 43  43 A   |Tc-86m  |1.11(21) µs                |(5+,5-)          |1500(150) keV
 43  43 D   |Tc-86m  |1.11(21) µs                |(5)              |1445+X keV
 43  44 A   |Tc-87   |2.18(16) s                 |1/2-#
 43  44 B   |Tc-87   |2.2(2) s                   |(9/2+)
 43  44 C   |Tc-87   |2.4 s                      |
 43  44 A   |Tc-87m  |2# s                       |9/2+#            |20(60)# keV
 43  44 D   |Tc-87m  |2.2(2) s                   |(9/2+)           |0 keV
 43  45 A   |Tc-88   |5.8(2) s                   |(2,3)
 43  45 B   |Tc-88   |5.8(2) s                   |(3+)
 43  45 C   |Tc-88   |5.8 s                      |
 43  45 A   |Tc-88m  |6.4(8) s                   |(6,7,8)          |0(300)# keV
 43  45 B   |Tc-88m  |6.4(8) s                   |(6+)             |0 MeV
 43  45 D   |Tc-88m  |6.4(8) s                   |(6,7,8)          |0 keV
 43  45 D   |Tc-88m  |5.8(2) s                   |(2,3)            |0+X keV
 43  46 AB  |Tc-89   |12.8(9) s                  |(9/2+)
 43  46 C   |Tc-89   |13. s                      |
 43  46 AE  |Tc-89m  |12.9(8) s                  |(1/2-)           |62.6(5) keV
 43  46 C   |Tc-89m  |13. s                      |
 43  47 AB  |Tc-90   |8.7(2) s                   |1+
 43  47 C   |Tc-90   |8.3 s                      |1+
 43  47 A   |Tc-90m  |49.2(4) s                  |(8+)             |310(390) keV
 43  47 E   |Tc-90m  |49.2(4) s                  |(6+)             |Y+500(430) keV
 43  47 D   |Tc-90m  |8.7(2) s                   |1+               |Y keV
 43  47 C   |Tc-90m  |49.2 s                     |6+
 43  48 AB  |Tc-91   |3.14(2) min                |(9/2)+
 43  48 C   |Tc-91   |3.14 min                   |9/2+
 43  48 AE  |Tc-91m  |3.3(1) min                 |(1/2)-           |139.3(3) keV
 43  48 C   |Tc-91m  |3.3 min                    |1/2+
 43  49 AB  |Tc-92   |4.25(15) min               |(8)+
 43  49 C   |Tc-92   |4.4 m                      |8+
 43  49 AD  |Tc-92m  |1.03(7) µs                 |(4+)             |270.15(11) keV
 43  50 AB  |Tc-93   |2.75(5) h                  |9/2+
 43  50 C   |Tc-93   |2.73 h                     |9/2+
 43  50 AE  |Tc-93m1 |43.5(10) min               |1/2-             |391.84(8) keV
 43  50 C   |Tc-93m1 |43. min                    |1/2-
 43  50 AD  |Tc-93m2 |10.2(3) µs                 |(17/2)-          |2185.16(15) keV
 43  51 ABC |Tc-94   |293(1) min                 |7+
 43  51 AE  |Tc-94m  |52.0(10) min               |(2)+             |75.5(19) keV
 43  51 C   |Tc-94m  |52. min                    |2+
 43  52 ABC |Tc-95   |20.0(1) h                  |9/2+
 43  52 AE  |Tc-95m  |61(2) d                    |1/2-             |38.89(5) keV
 43  52 C   |Tc-95m  |61. d                      |1/2-
 43  53 ABC |Tc-96   |4.28(7) d                  |7+
 43  53 AE  |Tc-96m  |51.5(10) min               |4+               |34.28(7) keV
 43  53 C   |Tc-96m  |52. min                    |4+
 43  54 A   |Tc-97   |2.6(4)E+6 a                |9/2+
 43  54 B   |Tc-97   |4.21(16)E+6 a              |9/2+
 43  54 C   |Tc-97   |4.2E+6 a                   |9/2+
 43  54 A   |Tc-97m  |90.1(10) d                 |1/2-             |96.56(6) keV
 43  54 E   |Tc-97m  |91.4(8) d                  |1/2-             |96.56(6) keV
 43  54 C   |Tc-97m  |91. d                      |1/2-
 43  55 AB  |Tc-98   |4.2(3)E+6 a                |(6)+
 43  55 C   |Tc-98   |~6.6E+6 a                  |6+
 43  55 AD  |Tc-98m  |14.7(3) µs                 |(2)-             |90.76(16) keV
 43  56 AB  |Tc-99   |2.111(12)E+5 a             |9/2+
 43  56 C   |Tc-99   |2.13E+5 a                  |9/2+
 43  56 A   |Tc-99m  |6.015(9) h                 |1/2-             |142.6832(11) keV
 43  56 E   |Tc-99m  |6.0058(12) h               |1/2-             |142.6832(11) keV
 43  56 C   |Tc-99m  |6.01 h                     |1/2-
 43  57 ABC |Tc-100  |15.8(1) s                  |1+
 43  57 AD  |Tc-100m1|8.32(14) µs                |(4)+             |200.67(4) keV
 43  57 AD  |Tc-100m2|3.2(2) µs                  |(6)+             |243.96(4) keV
 43  58 ABC |Tc-101  |14.22(1) min               |9/2+
 43  58 AD  |Tc-101m |636(8) µs                  |1/2-             |207.53(4) keV
 43  59 ABC |Tc-102  |5.28(15) s                 |1+
 43  59 A   |Tc-102m |4.35(7) min                |(4,5)            |20(10) keV
 43  59 E   |Tc-102m |4.35(7) min                |(4,5)            |0+X keV
 43  59 C   |Tc-102m |4.4 min                    |
 43  60 ABC |Tc-103  |54.2(8) s                  |5/2+
 43  61 AB  |Tc-104  |18.3(3) min                |(3+)#
 43  61 C   |Tc-104  |18.2 min                   |(3+)
 43  61 A   |Tc-104m1|3.5(3) µs                  |2(+)             |69.7(2) keV
 43  61 D   |Tc-104m1|3.5(3) µs                  |(+)              |69.7(2) keV
 43  61 C   |Tc-104m1|0.005 ms                   |
 43  61 D   |Tc-104m2|0.40(2) µs                 |(+)              |106.1(3) keV
 43  62 AB  |Tc-105  |7.6(1) min                 |(3/2-)
 43  62 C   |Tc-105  |7.6 min                    |5/2+
 43  63 AB  |Tc-106  |35.6(6) s                  |(1,2)
 43  63 C   |Tc-106  |36. s                      |2+
 43  64 AB  |Tc-107  |21.2(2) s                  |(3/2-)
 43  64 C   |Tc-107  |21.2 s                     |
 43  64 A   |Tc-107m |184(3) ns                  |(5/2-)           |65.7(10) keV
 43  64 D   |Tc-107m |184(3) ns                  |(5/2-)           |65.7 keV
 43  65 AB  |Tc-108  |5.17(7) s                  |(2)+
 43  65 C   |Tc-108  |5.1 s                      |(3)
 43  66 A   |Tc-109  |860(40) ms                 |3/2-#
 43  66 B   |Tc-109  |0.86(4) s                  |(5/2+)
 43  66 C   |Tc-109  |1.4 s                      |
 43  67 AB  |Tc-110  |0.92(3) s                  |(2+)
 43  67 C   |Tc-110  |0.83 s                     |
 43  68 A   |Tc-111  |290(20) ms                 |3/2-#
 43  68 B   |Tc-111  |290(20) ms                 |(7/2+,9/2+)
 43  68 C   |Tc-111  |0.30 s                     |
 43  69 A   |Tc-112  |290(20) ms                 |2+#
 43  69 B   |Tc-112  |0.29(2) s                  |
 43  69 C   |Tc-112  |0.26 s                     |
 43  70 A   |Tc-113  |170(20) ms                 |3/2-#
 43  70 B   |Tc-113  |170(20) ms                 |
 43  70 C   |Tc-113  |0.15 s                     |
 43  71 A   |Tc-114  |150(30) ms                 |2+#
 43  71 BC  |Tc-114  |150(30) ms                 |
 43  72 A   |Tc-115  |100# ms [>300 ns]          |3/2-#
 43  72 B   |Tc-115  |100# ms                    |
 43  72 C   |Tc-115  |>0.15 µs                   |
 43  73 A   |Tc-116  |90# ms [>300 ns]           |2+#
 43  73 B   |Tc-116  |90# ms                     |
 43  73 C   |Tc-116  |>0.15 µs                   |
 43  74 A   |Tc-117  |40# ms [>300 ns]           |3/2-#
 43  74 B   |Tc-117  |40# ms                     |
 43  74 C   |Tc-117  |>0.15 µs                   |
 43  75 A   |Tc-118  |30# ms [>300 ns]           |2+#
 43  75 BC  |Tc-118  |>150 ns                    |

Femto 15:39, 14 November 2005 (UTC)

Italic text===Talk===


43Tc Technetium stability data[edit]

As per the 2006-2007 (87th edition) CRC handbook, the element 43 Technetium has 3 relatively long half-lived isotopes. They are: OE43TC97 with 4.2x10e^6 years (log half-life value = 14.1), OO43Tc98 with 6.6x10e^6 years (log half-life = 14.3, and Oe43Tc99 with 2.13x10e^5 years (log half-life = 12.8). On the heavier side of this grouping, the half-life is reported as falling off rapidly to the low values of only: 15.8 seconds (log half-life = 1.20 for OO43Tc100, and then only 5.3 seconds (log half-life = 0.72} for OO43TC102. However at OO43Tc104 has risen back to 18.2 minutes (log half-life = 3.04), which is a highly irregular variation in the noted half-lives of the OO Isotopes of this element.WFPM (talk) 03:55, 18 April 2013 (UTC)