Information about Tellurium-131:


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Mass-Energy Data:

Atomic Mass:	130.908522	±	0.000002	amu
Excess Mass (Δ):	-85.211307	±	0.002007	MeV
Binding Energy:	1101.872218	±	0.002015	MeV
β^- Decay Energy:	2.233454	±	0.002308	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: 3/2+
Half life: 25.0 min ( 1500 sec., λ = 0.000462098 s^-1)
Mode of decay:
β^-
to
131
53
I
(Q = 2.233 MeV)
Meta state at 0.182 Mev
Spin: 11/2- 25.0
Half life: 30 h ( 108000 sec., λ = 6.41803×10^-06 s^-1)
Mode of decay:
β^-
to
131
53
I
(Q = 2.415 MeV) Branch ratio: 77.80 %
Mode of decay: γ (IT) (Q = 0.182 MeV) Branch ratio: 22.20 %
Possible parent nuclides:
β^- from
131
51
Sb

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	25 m	3/2+	0.696(9)		[125Te 36]	NMR/ON	PR C20 1171 (79)
182	30 h	11/2-	-1.04(4)			NO/S	PR C12 609 (75)

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