element

Information about Tantalum-179:


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

Mass-Energy Data:

Atomic Mass:	178.945934	±	0.000006	amu
Excess Mass (Δ):	-50.362041	±	0.005580	MeV
Binding Energy:	1438.017026	±	0.005586	MeV
β^- Decay Energy:	-1.059685	±	0.016265	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: 1.82 years ( 5.74028×10⁺⁰⁷ sec., λ = 1.20751×10^-08 s^-1)
Mode of decay:
E.C.
to
179
72
Hf
(Q = 0.110 MeV)
Meta state at 1.318 Mev
Spin: 25/2+) 1.82
Half life: 9.0 ms ( 0.009 sec., λ = 77.0164 s^-1)
Mode of decay: γ (IT) to
179
73
Ta
(Q = 1.318 MeV)
Meta state at 2.641 Mev
Spin: 37/2+) 9.0
Half life: 52 ms ( 0.052 sec., λ = 13.3298 s^-1)
Mode of decay: γ (IT) to
179
73
Ta
(Q = 2.641 MeV)
Possible parent nuclides:
E.C. from
179
74
W

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	1.82 y	7/2+	+2.289(9)		[181Ta]	LRS	PR C53 611 (96)
				+3.37(4)	[181Ta]	LRS	PR C53 611 (96)

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