element

Information about Radon-211:


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

Mass-Energy Data:

Atomic Mass:	210.990585	±	0.000008	amu
Excess Mass (Δ):	-8.769633	±	0.007140	MeV
Binding Energy:	1644.536353	±	0.007146	MeV
β^- Decay Energy:	-4.605233	±	0.021419	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: 14.6 h ( 52560 sec., λ = 1.31877×10^-05 s^-1)
Mode of decay:
E.C.
to
211
85
At
(Q = 2.892 MeV) Branch ratio: 72.60 %
Mode of decay:
α
to
207
84
Po
(Q = 5.965 MeV) Branch ratio: 27.40 %
Possible parent nuclides:
E.C. from
211
87
Fr

α from
215
88
Ra

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	14.6 h	1/2-	+0.601(7)		[209Rn]	CFBLS	PRL 60 2133 (88)
1578+x	596 ns	17/2-	+7.72(4)			TDPAD	Th Berger (87)
			+7.75(8)			TDPAD	PL 154B 263 (85)
				0.18(2)	[212Rn 1694]	TDPAD	PRL 55 1269 (85)
3926+x	40 ns	35/2+	+17.5(7)			TDPAD	Th Berger (87)
			+17.8(2)			TDPAD	PL 154B 263 (85)
5246+y	14 ns	43/2-	+15.9(4)			TDPAD	PL 154B 263 (85)
6100+y	29 ns	49/2+	+18.8(2)			TDPAD	PL 154B 263 (85)
8855+y	201 ns	63/2-	+19.6(2)			TDPAD	PL 154B 263 (85)
				1.5(2)	[212Rn 1694]	TDPAD	PRL 55 1269 (85)

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