102-No-254



Spin
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       ground state      0+                    
       5.00000E+02                             
Mass (The Ame2012 atomic mass evaluation (II) by M.Wang, G.Audi, A.H.Wapstra, F.G.Kondev, M.MacCormick, X.Xu, and B.Pfeiffer Chinese Physics C36 p. 1603-2014, December 2012)
     254.090955661 ± 0.000010759 (amu)  [mass excess = 84724.653 ± 10.023 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     -5148 ± 301 (keV) [derived from systematical trend] 
Evaluated Data Libraries
     Links to the libraries. 

Parent Nuclides by Reactions in JENDL-4.0