61-Pm-138  basic  element

61-promethium-138 Atomic Mass: 137.9194450 +- 0.0003440 amu # Excess Mass: -75037.000 +- 320.000 keV # Binding Energy: 1141156.000 +- 320.000 keV # Beta Decay Energy: B- -3815.000 +- 438.000 keV # "The 1995 update to the atomic mass evaluation" by G.Audi and A.H.Wapstra, Nuclear Physics A595 vol. 4 p.409-480, December 25, 1995. Spin: 1+ Half life: 10 s Mode of decay: Electron capture to Nd-138 Decay energy: 6.900 MeV Meta state at 0.000 Mev Spin: (3+) Half life: 3.24 min Mode of decay: Electron capture to Nd-138 Decay energy: 6.900 MeV Meta state at 0.000 Mev Spin: (5-) Half life: 3.24 min Mode of decay: Electron capture to Nd-138 Decay energy: 6.900 MeV Possible parent nuclides: Electron capture from Sm-138 R.R.Kinsey, et al.,The NUDAT/PCNUDAT Program for Nuclear Data,paper submitted to the 9 th International Symposium of Capture-Gamma_raySpectroscopy and Related Topics, Budapest, Hungary, Octover 1996.Data extracted from NUDAT database (Jan. 14/1999) Magnetic Dipole Moments and Electric Quadrupole Moments Ex(kev) T1/2 Spin      m(nm)      Q(b)      Ref. Std. Method Reference 0 3.5 m (3+) 3.2(9) NO/S HFI 75 471 (92) N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.