Information about Selenium-85:


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Mass-Energy Data:

Atomic Mass:	84.922245	±	0.000032	amu
Excess Mass (Δ):	-72.428605	±	0.029981	MeV
Binding Energy:	731.891028	±	0.029982	MeV
β^- Decay Energy:	6.182000	±	0.023000	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: (5/2+)
Half life: 31.7 s ( 31.7 sec., λ = 0.0218658 s^-1)
Mode of decay:
β^-
to
85
35
Br
(Q = 6.182 MeV)
Possible parent nuclides:
β^- from
85
33
As

β^- +
1
0
n from
86
33
As

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)