Information about Radium-225:


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

Mass-Energy Data:

Atomic Mass:	225.023604	±	0.000003	amu
Excess Mass (Δ):	21.987412	±	0.003090	MeV
Binding Energy:	1725.213120	±	0.003105	MeV
β^- Decay Energy:	0.357589	±	0.007262	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: 14.9 days ( 1.28736×10⁺⁰⁶ sec., λ = 5.38425×10^-07 s^-1)
Mode of decay:
β^-
to
225
89
Ac
(Q = 0.357 MeV)
Possible parent nuclides:
β^- from
225
87
Fr

α from
229
90
Th

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	14.8 d	1/2-	-0.7338(15)		[137Ba]	CFBLS	PRL 59 771 (87)/NP A483 244 (88)

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