85-At-210  basic  element

85-astatine-210 Atomic Mass: 209.9871313 +- 0.0000089 amu Excess Mass: -11987.107 +- 8.273 keV Binding Energy: 1640464.858 +- 8.277 keV Beta Decay Energy: B- -2373.963 +- 12.453 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: (5)+ Half life: 8.1 h Mode of decay: Electron capture to Po-210 Branch ratio: 99.82 % Decay energy: 3.981 MeV Mode of decay: Alpha to Bi-206 Branch ratio: 0.18 % Decay energy: 5.631 MeV Possible parent nuclides: Electron capture from Rn-210 Alpha from Fr-214 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 1363 28.4 ns 11+ +9.8(3) TDPAD ARRIP 140 (74) 0.65(8) [211At 2641] TDPAD PL 122B 27 (83) +15.68(2) TDPAD Th Berger (87) 15.48(15) TDPAD HFI 34 47 (87) 15.57(15) "TDPAD, R" ZP A284 357 (78) 2550 480 ns 15- 1.22(12) [211At 2641] LEMS PR C43 2566 (91) 1.22(12) [211At 2641] TDPAD PL 122B 27 (83) 4028 5.9 ms 19+ 13.26(13) TDPAD HFI 34 47 (87) 14.0(5) [210At 2550] ZP A284 357 (78) 2.2(3) [211At 2641] 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.