Information about Xenon-127:


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

Mass-Energy Data:

Atomic Mass:	126.905180	±	0.000004	amu
Excess Mass (Δ):	-88.324638	±	0.004176	MeV
Binding Energy:	1071.135551	±	0.004179	MeV
β^- Decay Energy:	-2.084701	±	0.008785	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: 1/2+
Half life: 36.4 days ( 3.14496×10⁺⁰⁶ sec., λ = 2.20399×10^-07 s^-1)
Mode of decay:
E.C.
to
127
53
I
(Q = 0.662 MeV)
Meta state at 0.297 Mev
Spin: 9/2- 36.4
Half life: 69.2 s ( 69.2 sec., λ = 0.0100166 s^-1)
Mode of decay: γ (IT) (Q = 0.297 MeV)
Possible parent nuclides:
E.C. from
127
55
Cs

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	36.4 d	1/2+	-0.5033(11) d		[129Xe]	CFBLS	PC Neugart (90)
			-0.5039(2)		"[129,131Xe]"	LRS	Cf82OakR 183 (82)
297	1.15 m	9/2-	-0.8844(10) d		[129Xe]	CFBLS	PC Neugart (90)
				+0.69(2)	[131Xe]	CFBLS	PC Neugart (90)
342	37 ns	7/2+	+0.85(3)			TDPAD	ZP A317 215 (84)

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