element

Information about Bismuth-212:


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

Mass-Energy Data:

Atomic Mass:	211.991272	±	0.000003	amu
Excess Mass (Δ):	-8.130505	±	0.002930	MeV
Binding Energy:	1654.315608	±	0.002944	MeV
β^- Decay Energy:	2.254017	±	0.001701	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: 60.55 min ( 3633 sec., λ = 0.000190792 s^-1)
Mode of decay:
β^-
to
212
84
Po
(Q = 2.254 MeV) Branch ratio: 64.06 %
Mode of decay:
α
to
208
81
Tl
(Q = 6.207 MeV) Branch ratio: 35.94 %
Mode of decay: β^- + α to
208
82
Pb
(Q = 4 11.208 MeV) Branch ratio: 0.014 %
Meta state at 0.250 Mev
Spin: (9-) 60.55
Half life: 25.0 min ( 1500 sec., λ = 0.000462098 s^-1)
Mode of decay:
α
to
208
81
Tl
(Q = 6.457 MeV) Branch ratio: 67.00 %
Mode of decay:
β^-
to
212
84
Po
(Q = 2.504 MeV) Branch ratio: 33.00 %
Meta state at 1.910 Mev 25.0
Half life: 7.0 min ( 420 sec., λ = 0.00165035 s^-1)
Mode of decay:
β^-
to
212
84
Po
(Q = 4.164 MeV) Branch ratio: ~100.00 %
Possible parent nuclides:
β^- from
212
82
Pb

α from
216
85
At

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	60.6 m	1(-)	0.41(5)			NO/S	HFI 75 109 (92)
			+0.32(4)		[209Bi]	LRFS	PL B405 31 (97)
				+0.1(3)	[209Bi]	LRFS	PL B405 31 (97)

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