2-He-9  basic  element

2-helium-9 Atomic Mass: 9.0438203 +- 0.0000671 amu Excess Mass: 40818.362 +- 62.471 keV Binding Energy: 30258.837 +- 62.471 keV Beta Decay Energy: B- 15864.459 +- 62.499 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: (1/2-) Half life: ~0.3 MeV Mode of decay: Neutron emission to He-8 Decay energy: 1.150 MeV 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)