Information about Hafnium-179:


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Mass-Energy Data:

Atomic Mass:	178.945815	±	0.000003	amu
Excess Mass (Δ):	-50.472927	±	0.002514	MeV
Binding Energy:	1438.910264	±	0.002526	MeV
β^- Decay Energy:	-0.110885	±	0.005452	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:

Atomic Percent Abundance: 13.629%
Spin: 9/2+
Stable Isotope
Meta state at 0.375 Mev
Spin: 1/2-
Half life: 18.67 s ( 18.67 sec., λ = 0.0371263 s^-1)
Mode of decay: γ (IT) (Q = 0.375 MeV)
Meta state at 1.106 Mev
Spin: 25/2- 18.67
Half life: 25.05 days ( 2.16432×10⁺⁰⁶ sec., λ = 3.20261×10^-07 s^-1)
Mode of decay: γ (IT) (Q = 1.106 MeV)
Possible parent nuclides:
β^- from
179
71
Lu

E.C. from
179
73
Ta

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	stable	9/2+	-0.6409(13)			AB/D	PL 43B 479 (73)/ZP 260 157 (73)
				+3.79(3) a		"Mu-X, AB"	PR C29 1830 (84)/ZP 260 157 (73)
				+3.93(5) a		Pi-X	NP A403 572 (83)
				+5.3(5)		"AB, R"	Bk82HFS 84 (82)/PL 62A 307 (77)
123	37 ps	11/2+		1.88(3) a		Mu-X	PR C30 350 (84)
1106	25.1 d	25/2-	7.4(3)		[177Hf 113]	NO/S	PR C12 2013 (75)

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