element

Information about Tantalum-180:


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Mass-Energy Data:

Atomic Mass:	179.947466	±	0.000003	amu
Excess Mass (Δ):	-48.935420	±	0.003158	MeV
Binding Energy:	1444.661727	±	0.003168	MeV
β^- Decay Energy:	0.707862	±	0.004233	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: 1+
Half life: 8.152 h ( 29347.2 sec., λ = 2.36189×10^-05 s^-1)
Mode of decay:
E.C.
to
180
72
Hf
(Q = 0.854 MeV) Branch ratio: 86.00 %
Mode of decay:
β^-
to
180
74
W
(Q = 0.708 MeV) Branch ratio: 14.00 %
Atomic Percent Abundance: 0.012%
Meta state at 0.075 Mev
Spin: 9- 8.152
Half life: >1.2E+15 years ( 0 sec., λ = inf s^-1)
Mode of decay:
β^-
to
180
74
W
Mode of decay:
E.C.
to
180
72
Hf
Possible parent nuclides:
β^- from
180
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
75	>1.2x10*15y	9-	+4.825(11)			LRS	PR A50 4639 (94)
			4.77(5)		[181Ta]	ABLRFS	PL 92B 64 (80)
				+4.95(2)		LRS	PR A50 4639 (94)

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