Information about Tellurium-125:


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Mass-Energy Data:

Atomic Mass:	124.904425	±	0.000002	amu
Excess Mass (Δ):	-89.027789	±	0.001884	MeV
Binding Energy:	1057.260763	±	0.001891	MeV
β^- Decay Energy:	-0.185770	±	0.000060	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:

Atomic Percent Abundance: 7.139%
Spin: 1/2+
Stable Isotope
Meta state at 0.145 Mev
Spin: 11/2-
Half life: 57.40 days ( 4.95936×10⁺⁰⁶ sec., λ = 1.39765×10^-07 s^-1)
Mode of decay: γ (IT) (Q = 0.145 MeV)
Possible parent nuclides:
β^- from
125
51
Sb

E.C. from
125
53
I

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	stable	1/2+	-0.8885051(4)		[2H]	N	ZNat 32a 1263 (77)
			-0.8884509(10)		[23Na]		ZNat 32a 1263 (77)/PR 89 923 (53)
36	1.48 ns	3/2+	+0.605(4)		[125Te]	ME	PL 54A 293 (75)
				-0.31(2)	[129I]	ME	PR B15 2504 (77)
145	58 d	11/2-	-0.985(6)		[125Te 36]	NMR/ON	PR C21 439 (80)
				-0.06(2)		NO/ME	HFI 35 1023 (87)
321	695 ps	9/2-	-0.92(3)			IPAC	NP A154 369 (70)
				"0.12(+5,-9)"	[125Te 36]	IPAC	HFI 2 321 (76)
443	19 ps	3/2+	+0.7(2)			TF	HFI 43 457 (88)
			+0.59(9)			IMPAC	NP A236 165 (74)
463	13 ps	5/2+	+0.50(12)			TF	HFI 43 457 (88)
			+0.8(2)			TF	IzF 49 2137 (85)
526	<160 ps	7/2-	<0			IPAC	NP A170 240 (71)
672	1.3 ps	5/2+	-0.6(7)			TF	HFI 43 457 (88)

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