Information about Zirconium-90:


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Mass-Energy Data:

Atomic Mass:	89.904704	±	0.000002	amu
Excess Mass (Δ):	-88.767938	±	0.002177	MeV
Binding Energy:	783.892854	±	0.002180	MeV
β^- Decay Energy:	-6.111000	±	0.004000	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: 51.45%
Spin: 0+
Stable Isotope
Meta state at 2.319 Mev
Spin: 5-
Half life: 809.2 ms ( 0.8092 sec., λ = 0.856583 s^-1)
Mode of decay: γ (IT) to
90
40
Zr
(Q = 2.319 MeV)
Possible parent nuclides:
β^- from
90
39
Y

E.C. from
90
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
2319	0.8 s	5-	6.25(13)			NMR/ON	NP A468 348 (87)
3589	134 ns	8+	+10.84(6)			TDPAD	NP A293 248 (77)/HFI 4 196 (78)
				-0.51(3)	[91Zr]	TDPAD	PRL 54 2592 (85)
						TFLD	PR C33 1517 (86)

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