Information about Zirconium-99:


Wikipedia	Neutron Cross Sections	X-Ray Transitions	X-Ray Attenuation

Mass-Energy Data:

Atomic Mass:	98.916511	±	0.000021	amu
Excess Mass (Δ):	-77.769413	±	0.020026	MeV
Binding Energy:	845.536235	±	0.020026	MeV
β^- Decay Energy:	4.558004	±	0.014982	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: (1/2+)
Half life: 2.1 s ( 2.1 sec., λ = 0.33007 s^-1)
Mode of decay:
β^-
to
99
41
Nb
(Q = 4.558 MeV)
Possible parent nuclides:
β^- from
99
39
Y

β^- +
1
0
n from
100
39
Y

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
122	1.07 ns	3/2+	+0.42(6)			IPAC	PR C51 2381 (95)

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