88-Ra-216
 basic

 element
88-radium-216

  • Atomic Mass: 216.0035184 +- 0.0000098 amu
  • Excess Mass: 3277.370 +- 9.144 keV
  • Binding Energy: 1671281.257 +- 9.148 keV
  • Beta Decay Energy: B- -4846.438 +- 28.423 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: 0+
  • Half life: 182 ns
  • Mode of decay: Alpha to Rn-212
    • Decay energy: 9.526 MeV
  • Mode of decay: EC to Fr-216
    • Branch ratio: <1.0E-8 %
    • Decay energy: 0.308 MeV

    Meta state at 1.507 Mev
  • Spin: 6+
  • Half life: <0.2 ns
  • Mode of decay: Alpha to Rn-212
    • Branch ratio: 0.58 %
    • Decay energy: 11.034 MeV

    Meta state at 1.711 Mev
  • Spin: 8+
  • Half life: 1.42 ns
  • Mode of decay: Alpha to Rn-212
    • Branch ratio: 1.86 %
    • Decay energy: 11.237 MeV

    Meta state at 2.026 Mev
  • Spin: 10+
  • Half life: 0.6 ns
  • Mode of decay: Alpha to Rn-212
    • Branch ratio: 0.12 %
    • Decay energy: 11.552 MeV

  • Possible parent nuclides:
    Alpha from Th-220
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
15080.5 ns6+ g(avge) = 0.1(3) TDPADHFI 59 165 (90)
17111.7 ns8+ g(avge) = 0.1(3) TDPADHFI 59 165 (90)
+3(3) IPADCf83Meguro 155 (83)
20260.6 ns10+ +1(3) TDPADHFI 59 165 (90)
26790.8 ns13- -1(3) TDPADHFI 59 165 (90)
37635.3 ns19- +9.3(10) TDPADHFI 59 165 (90)
+9.7(6) TDPADNP A442 361 (85)
51706.6 ns25- +18(5) TDPADHFI 59 165 (90)
25-/24+ g = 0.63(6) TDPADNP A442 361 (85)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.