element

Information about Ytterbium-158:


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Mass-Energy Data:

Atomic Mass:	157.939858	±	0.000011	amu
Excess Mass (Δ):	-56.022000	±	0.009912	MeV
Binding Energy:	1276.526265	±	0.009914	MeV
β^- Decay Energy:	-8.673000	±	0.123000	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: 0+
Half life: 1.49 min ( 89.4 sec., λ = 0.00775332 s^-1)
Mode of decay:
E.C.
to
158
69
Tm
(Q = 2.670 MeV)
Mode of decay:
α
to
154
68
Er
(Q = 4.171 MeV) Branch ratio: ~0.0021 %
Possible parent nuclides:
E.C. from
158
71
Lu

α from
162
72
Hf

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
band		30 - 38	(+)0.20(7)			TF	ANL-PHY-88-2 (88)

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