Information about Praseodymium-138:


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Mass-Energy Data:

Atomic Mass:	137.910749	±	0.000016	amu
Excess Mass (Δ):	-83.136860	±	0.014533	MeV
Binding Energy:	1150.820557	±	0.014535	MeV
β^- Decay Energy:	-1.100000	±	0.200000	MeV #

"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.

Radioactive Decay Data:

Spin: 1+
Half life: 1.45 min ( 87 sec., λ = 0.00796721 s^-1)
Mode of decay:
E.C.
to
138
58
Ce
(Q = 4.437 MeV)
Meta state at 0.364 Mev
Spin: 7- 1.45
Half life: 2.12 h ( 7632 sec., λ = 9.08212×10^-05 s^-1)
Mode of decay:
E.C.
to
138
58
Ce
(Q = 4.801 MeV)
Possible parent nuclides:
E.C. from
138
60
Nd

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)