element

Information about Polonium-200:


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

Mass-Energy Data:

Atomic Mass:	199.981735	±	0.000150	amu #
Excess Mass (Δ):	-17.014000	±	0.140000	MeV #
Binding Energy:	1565.561000	±	0.140000	MeV #
β^- Decay Energy:	-7.972000	±	0.250000	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: 0+
Half life: 11.5 min ( 690 sec., λ = 0.00100456 s^-1)
Mode of decay:
E.C.
to
200
83
Bi
(Q = 3.350 MeV) Branch ratio: 88.90 %
Mode of decay:
α
to
196
82
Pb
(Q = 5.982 MeV) Branch ratio: 11.10 %
Possible parent nuclides:
E.C. from
200
85
At

α from
204
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
1774	61 ns	8+	+7.44(16)			TDPAD	ZP A324 123 (86)
				1.38(7)	[210Po 1557]	"TDPAD, R"	HFI 34 47 (87)
2596	100 ns	11-	+11.9(2)			TDPAD	ZP A324 123 (86)
2830	270 ns	12+	-1.79(2)			TDPAD	ZP A324 123 (86)

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