Information about Antimony-128:


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Mass-Energy Data:

Atomic Mass:	127.909167	±	0.000027	amu
Excess Mass (Δ):	-84.610075	±	0.025063	MeV
Binding Energy:	1077.839371	±	0.025064	MeV
β^- Decay Energy:	4.383560	±	0.025000	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: 8-
Half life: 9.01 h ( 32436 sec., λ = 2.13697×10^-05 s^-1)
Mode of decay:
β^-
to
128
52
Te
(Q = 4.380 MeV)
Meta state at 0.000 Mev
Spin: 5+ 9.01
Half life: 10.4 min ( 624 sec., λ = 0.00111081 s^-1)
Mode of decay:
β^-
to
128
52
Te
(Q = 4.380 MeV) Branch ratio: 96.40 %
Mode of decay: γ (IT) Branch ratio: 3.60 %
Possible parent nuclides:
β^- from
128
50
Sn

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)

Magnetic Dipole Moments and Electric Quadrupole Moments
Ex(kev)	T_1/2	Spin	m(nm)	Q(b)	Ref. Std.	Method	Reference
0	9.1 h	8-	1.3(2)			NO/S	PR C6 2268 (72)

N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published. 2000 Courtesy of T. Burrows at BNL/NNDC.