Information about Iodine-126:


Wikipedia	Neutron Cross Sections	X-Ray Transitions	X-Ray Attenuation

Mass-Energy Data:

Atomic Mass:	125.905619	±	0.000004	amu
Excess Mass (Δ):	-87.914962	±	0.003877	MeV
Binding Energy:	1063.436905	±	0.003881	MeV
β^- Decay Energy:	1.258000	±	0.005000	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: 2-
Half life: 13.11 days ( 1.1327×10⁺⁰⁶ sec., λ = 6.1194×10^-07 s^-1)
Mode of decay:
E.C.
to
126
52
Te
(Q = 2.155 MeV) Branch ratio: 56.30 %
Mode of decay:
β^-
to
126
54
Xe
(Q = 1.258 MeV) Branch ratio: 43.70 %

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	13.1 d	2-	1.438(4)			NMR/ON	PR C45 162 (92)
111	56 ns	unknown	-2.24(2)			TDPAD	PC75 Block (75)

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