element

Information about Francium-214:


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

Mass-Energy Data:

Atomic Mass:	213.998955	±	0.000010	amu
Excess Mass (Δ):	-0.973653	±	0.009152	MeV
Binding Energy:	1660.171988	±	0.009157	MeV
β^- Decay Energy:	-1.058551	±	0.013542	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-)
Half life: 5.0 ms ( 0.005 sec., λ = 138.629 s^-1)
Mode of decay:
α
to
210
85
At
(Q = 8.589 MeV)
Meta state at 0.122 Mev
Spin: (8-) 5.0
Half life: 3.35 ms ( 0.00335 sec., λ = 206.91 s^-1)
Mode of decay:
α
to
210
85
At
(Q = 8.711 MeV)
Possible parent nuclides:
E.C. from
214
88
Ra

α from
218
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
640	148 ns	11+	"+5.62(7) K, d"		[213Fr 2538]	TDPAD	NP A567 445 (94)
				0.8(2)	[213Fr 2538]	LEMS	PR C51 3483 (95)
1663 or	16 ns	14-	"+8.5(4) K, d"		[213Fr 2538]	TDPAD	NP A567 445 (94)
1734	15 ns	15-	level uncertain
4318+D	11.5 ns	27-	"+19.7(8) K, d"		[213Fr 2538]	TDPAD	NP A567 445 (94)
6477+D'	156 ns	33+	+22(3)		[213Fr 2538]	TDPAD	NP A567 445 (94)
		32+ or 33+		2.2(5)	[213Fr 2538]	LEMS	PR C51 3483 (95)

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