element

Information about Polonium-211:


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

Mass-Energy Data:

Atomic Mass:	210.986637	±	0.000003	amu
Excess Mass (Δ):	-12.447675	±	0.002953	MeV
Binding Energy:	1649.779101	±	0.002966	MeV
β^- Decay Energy:	-0.786122	±	0.002545	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: 0.516 s ( 0.516 sec., λ = 1.34331 s^-1)
Mode of decay:
α
to
207
82
Pb
(Q = 7.595 MeV)
Meta state at 1.462 Mev
Spin: 25/2+) 0.516
Half life: 25.2 s ( 25.2 sec., λ = 0.0275058 s^-1)
Mode of decay:
α
to
207
82
Pb
(Q = 9.057 MeV) Branch ratio: 99.98 %
Mode of decay: γ (IT) to
211
84
Po
(Q = 1.462 MeV) Branch ratio: 0.02 %
Possible parent nuclides:
β^- from
211
83
Bi

E.C. from
211
85
At

α from
215
86
Rn

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
1065	16 ns	15/2-	-0.38(15)			IPAD	JPJS 34 287 (73)

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