85-At-221 basic

85-astatine-221

Atomic Mass: 221.0181400 +- 0.0003200 amu #
Excess Mass: 16897.000 +- 298.000 keV #
Binding Energy: 1700365.000 +- 298.000 keV #
Beta Decay Energy: B- 2501.000 +- 315.000 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.

Half life: 2.3 min
Mode of decay: Beta to Rn-221

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)