Information about Cerium-142:


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Mass-Energy Data:

Atomic Mass:	141.909240	±	0.000004	amu
Excess Mass (Δ):	-84.542631	±	0.003426	MeV
Binding Energy:	1185.293973	±	0.003432	MeV
β^- Decay Energy:	-0.745318	±	0.002396	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: 11.08%
Spin: 0+
Half life: >5E+16 years ( 0 sec., λ = inf s^-1)
Mode of decay: 2β^- to
142
60
Nd
Possible parent nuclides:
β^- from
142
57
La

E.C. from
142
59
Pr

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
641	5.7 ps	2+	+0.42(10)			TF	NP A533 541 (91)
				-0.16(5) or -0.37(5)		CER	PR C38 2982 (88)/AuJP 42 345 (89)

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