2-He-10  basic  element

2-helium-10 Contribution from TON user: Tom Massey (massey@ohiou.edu) The ground state of 10He decays by two neutron emission to 8He while the two excited states decay by one neutron emission to 9He. Reference: Ostrowski AN, Bohlen HG, et al., "Spectroscopy of He-10," PHYSICS LETTERS B 338: (1) 13-19 OCT 20 1994 17 Feb 2000 Atomic Mass: 10.0523997 +- 0.0000751 amu Excess Mass: 48810.011 +- 70.001 keV Binding Energy: 30338.510 +- 70.001 keV Beta Decay Energy: B- 15759.785 +- 71.615 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: 2.7E-21 s Mode of decay: 2N 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)