85-At-208  basic  element

85-astatine-208 Atomic Mass: 207.9865825 +- 0.0000277 amu Excess Mass: -12498.312 +- 25.831 keV Binding Energy: 1624833.416 +- 25.833 keV Beta Decay Energy: B- -2839.872 +- 29.036 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: 6+ Half life: 1.63 h Mode of decay: Electron capture to Po-208 Branch ratio: 99.45 % Decay energy: 4.973 MeV Mode of decay: Alpha to Bi-204 Branch ratio: 0.55 % Decay energy: 5.751 MeV Possible parent nuclides: Electron capture from Rn-208 Alpha from Fr-212 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 1090 48 ns 10- +2.69(3) TDPAD ZP A322 463 (85) 2276 1.5ms 16- 1.7(3) [g calc] LEMS PR C43 2566 (91) N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.