element

Information about Boron-12:

		(no NIST x-ray data)	(no NIST attenuation data)
Wikipedia	Neutron Cross Sections	X-Ray Transitions	X-Ray Attenuation

Mass-Energy Data:

Atomic Mass:	12.014352	±	0.000002	amu
Excess Mass (Δ):	13.368901	±	0.001400	MeV
Binding Energy:	79.575205	±	0.001400	MeV
β^- Decay Energy:	13.368901	±	0.001400	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: 20.20 ms ( 0.0202 sec., λ = 34.3142 s^-1)
Mode of decay:
β^-
to
12
6
C
(Q = 13.369 MeV)
Mode of decay: β^- + 3α Branch ratio: 1.58 %
Possible parent nuclides:
β^- from
12
4
Be

β^- + 2
1
0
n from
14
4
Be

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	20.4 ms	1+	+1.00272(11)			b-NMR	NP A516 365 (90)
			+1.00306(+15/-14)			b-NMR	PR C2 1219 (70)
							PR C5 1435 (72)
				0.0132(3)	[11B]	b-NNQR	HFI 78 185 (93)
				0.0134(14) st	[11B]	b-NMR	HFI 4 224 (78)

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