element

Information about Francium-213:


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

Mass-Energy Data:

Atomic Mass:	212.996175	±	0.000009	amu
Excess Mass (Δ):	-3.563108	±	0.008116	MeV
Binding Energy:	1654.690120	±	0.008121	MeV
β^- Decay Energy:	-3.885263	±	0.028560	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: 34.6 s ( 34.6 sec., λ = 0.0200332 s^-1)
Mode of decay:
α
to
209
85
At
(Q = 6.905 MeV) Branch ratio: 99.45 %
Mode of decay:
E.C.
to
213
86
Rn
(Q = 2.148 MeV) Branch ratio: 0.55 %
Possible parent nuclides:
α from
217
89
Ac

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	34.7 s	9/2-	+4.02(8)		[211Fr]	CFBLS	EPL 3 175 (87)
			+4.02(8)		[211Fr]	ABLS	PL 163B 66 (85)/PS 34 624 (86)
				-0.14(2) st		ABLS	PL 163B 66 (85)
1411	18 ns	17/2-	7.5(14)			TDPAD	NP A448 137 (86)
1590	499 ns	21/2-	9.4(2)			TDPAD	NP A448 137 (86)
			9.32(3)			"TDPAD, R"	HFI 3 397 (77)/HFI 4 219 (78)
2538	243 ns	29/2+	+15.30(7)			TDPAD	PL B217 38 (89)
			15.23(14)			TDPAD	NP A448 137 (86)
			15.22(3)			TDPAD	HFI 3 397 (77)/HFI 4 219 (78)
4993	13 ns	45/2-	23.2(7)			TDPAD	NP A448 137 (86)
			22.3(6)			TDPAD	NP A317 520 (79)
8095	3.1 ms	65/2-	+22.6(2)		[213Fr 2538]	TDPAD	PL B217 38 (89)
				-2.2(5)	[213Fr 2538]	LEMS	PR C43 514 (91)

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