element

Information about Boron-8:

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

Mass-Energy Data:

Atomic Mass:	8.024607	±	0.000001	amu
Excess Mass (Δ):	22.921002	±	0.001107	MeV
Binding Energy:	37.737813	±	0.001107	MeV
β^- Decay Energy:	-12.173054	±	0.023094	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: 2+
Half life: 770 ms ( 0.77 sec., λ = 0.900191 s^-1)
Mode of decay: E.C. + α to
4
2
He
(Q = 18.071 MeV)
Mode of decay:
E.C.
to
8
4
Be
(Q = 17.979 MeV)

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	0.77 s	2+	1.0355(3)			b-NMR	JPJS 34 156 (73)
			+1.03579(5) d.K		[12B]	b-NMR	ARO p71 (96)
				0.063(5)	[11B]	b-NMR	ARO p48 (89)
				0.068(2)	[12B]	b-NNQR	PRL 69 2058 (92)
				0.0646(15)	[12B]	b-NNQR	ARO p71 (96)

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