element

Information about Ytterbium-155:


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

Mass-Energy Data:

Atomic Mass:	154.945792	±	0.000320	amu #
Excess Mass (Δ):	-50.494000	±	0.298000	MeV #
Binding Energy:	1246.784000	±	0.298000	MeV #
β^- Decay Energy:	-7.862000	±	0.327000	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: (7/2-)
Half life: 1.800 s ( 1.8 sec., λ = 0.385082 s^-1)
Mode of decay:
α
to
151
68
Er
(Q = 5.337 MeV) Branch ratio: 89.00 %
Mode of decay:
E.C.
to
155
69
Tm
(Q = 6.100 MeV) Branch ratio: 11.00 %
Possible parent nuclides:
α from
159
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
0	1.59 s	(7/2-)	-0.84(8)			LRIMS	BRASP 56 (11) 69 (92)
				-1.2(10)		LRIMS	BRASP 56 (11) 69 (92)

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