Information about Ytterbium-169:


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Mass-Energy Data:

Atomic Mass:	168.935187	±	0.000005	amu
Excess Mass (Δ):	-60.372800	±	0.004440	MeV
Binding Energy:	1369.661616	±	0.004446	MeV
β^- Decay Energy:	-2.293000	±	0.003000	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: 32.026 days ( 2.76705×10⁺⁰⁶ sec., λ = 2.50501×10^-07 s^-1)
Mode of decay:
E.C.
to
169
69
Tm
(Q = 0.909 MeV)
Meta state at 0.024 Mev
Spin: 1/2- 32.026
Half life: 46 s ( 46 sec., λ = 0.0150684 s^-1)
Mode of decay: γ (IT) (Q = 0.024 MeV)
Possible parent nuclides:
E.C. from
169
71
Lu

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	32.0 d	7/2+	-0.635(8)		[173Yb]	CFBLS	HFI 15 181 (83)
			-0.633(16)		[173Yb]	"O, R"	HFI 15 181 (83)
				+3.54(6)	[173Yb]	CFBLS	HFI 15 181 (83)
				+3.52(7)	[173Yb]	"O, R"	HFI 15 181 (83)
24	46 s	1/2-	+0.507(8)		[173Yb]	CFBLS	HFI 15 181 (83)

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