72-Hf-177
 basic
 n-XS summary
 XS graphs

 element
72-hafnium-177

  • Atomic Mass: 176.9432200 +- 0.0000027 amu
  • Excess Mass: -52890.209 +- 2.522 keV
  • Binding Energy: 1425184.901 +- 2.534 keV
  • Beta Decay Energy: B- -1166.000 +- 3.000 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.
  • Atomic Percent Abundance: 18.606%
  • Spin: 7/2-
  • Stable Isotope
    Meta state at 1.315 Mev
  • Spin: 23/2+
  • Half life: 1.08 s
  • Mode of decay: IT
    • Decay energy: 1.315 MeV

    Meta state at 2.740 Mev
  • Spin: 37/2-
  • Half life: 51.4 min
  • Mode of decay: IT
    • Decay energy: 2.740 MeV

  • Possible parent nuclides:
    Beta from Lu-177
    Electron capture from Ta-177
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)T1/2Spin    m(nm)    Q(b)    Ref. Std.MethodReference
0stable7/2- +0.7935(6) AB/DPL 43B 479 (73)/ZP 260 157 (73)
+3.37(3) a Mu-XPR C29 1830 (84)
+3.36(3) [179Hf]ABZP 260 157 (73)
113530 ps9/2- +1.03(3) d IPACZP A355 363 (96)
583 ps9/2- +0.91(2) IPACPR C44 2213 (91)
490 ps9/2- +1.08(4) "IPAC, R"PR C12 2031 (75)
1.30(2) a Mu-XPR C30 350 (84)
25097 ps11/2- +1.5(5) [177Hf 113]IPACCJP 46 1523 (68)
3210.67(2) ns9/2+ -0.73(9) IPACNP A127 609 (69)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.