element

Information about Sodium-20:


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

Mass-Energy Data:

Atomic Mass:	20.007348	±	0.000007	amu
Excess Mass (Δ):	6.844859	±	0.006662	MeV
Binding Energy:	145.975710	±	0.006662	MeV
β^- Decay Energy:	-10.725671	±	0.027810	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: 447.9 ms ( 0.4479 sec., λ = 1.54755 s^-1)
Mode of decay:
E.C.
to
20
10
Ne
(Q = 13.886 MeV)
Mode of decay: E.C. + α to
16
8
O
Possible parent nuclides:
E.C. from
20
12
Mg

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	0.446 s	2+	+0.3694(2)		[23Na]	OP/RD	NP A246 187 (75)

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