Information about Rubidium-87:


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Mass-Energy Data:

Atomic Mass:	86.909183	±	0.000003	amu
Excess Mass (Δ):	-84.595045	±	0.002484	MeV
Binding Energy:	757.853053	±	0.002487	MeV
β^- Decay Energy:	0.283314	±	0.001515	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: 27.835%
Spin: 3/2-
Half life: 4.75E10 years ( 1.49815×10⁺¹⁸ sec., λ = 4.62669×10^-19 s^-1)
Mode of decay:
β^-
to
87
38
Sr
(Q = 0.283 MeV)
Possible parent nuclides:
β^- from
87
36
Kr

E.C. from
87
38
Sr

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	4.9 10*10y	3/2-	+2.75131(12)			ABLS	NIMPR A325 465 (93)
			+2.751818(2)		[2H]	N	PL 25A 440 (67)/ZNat 23a 1202 (68)
			+2.751235(3)			OP	PR 174 23 (68)
				+0.132(1) st		OD	ZP 261 1 (73)
				+0.127(1) st		OD/R	PR A3 837 (71)
				+0.13(2) st		ABLS	PR C23 2720 (81)

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