Information about Zirconium-89:


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Mass-Energy Data:

Atomic Mass:	88.908889	±	0.000004	amu
Excess Mass (Δ):	-84.869416	±	0.003355	MeV
Binding Energy:	771.923009	±	0.003357	MeV
β^- Decay Energy:	-4.291008	±	0.035655	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: 9/2+
Half life: 78.41 h ( 282276 sec., λ = 2.45557×10^-06 s^-1)
Mode of decay:
E.C.
to
89
39
Y
(Q = 2.832 MeV)
Meta state at 0.588 Mev
Spin: 1/2- 78.41
Half life: 4.18 min ( 250.8 sec., λ = 0.00276374 s^-1)
Mode of decay: γ (IT) (Q = 0.588 MeV) Branch ratio: 93.77 %
Mode of decay:
E.C.
to
89
39
Y
(Q = 3.420 MeV) Branch ratio: 6.23 %
Possible parent nuclides:
E.C. from
89
41
Nb

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	78.4 h	9/2+	-1.08(2)			NMR/ON(b)	PR C54 1129 (96)
			-1.07(3)			NMR/ON	NP A620 317 (97)
2995	5.2 ns	21/2+	+9.4(4)			TDPAD	ZP A329 429 (88)

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