7-N-21  basic  element

7-nitrogen-21 Atomic Mass: 21.0270876 +- 0.0000959 amu Excess Mass: 25231.909 +- 89.365 keV Binding Energy: 138789.396 +- 89.365 keV Beta Decay Energy: B- 17170.173 +- 90.171 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: 87 ms Mode of decay: Beta to O-21 Decay energy: 17.170 MeV Mode of decay: Beta + Neutron to O-20 Branch ratio: 80.00 % Decay energy: 13.360 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)