Information about Antimony-120:


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Mass-Energy Data:

Atomic Mass:	119.905074	±	0.000008	amu
Excess Mass (Δ):	-88.422693	±	0.007569	MeV
Binding Energy:	1017.081406	±	0.007571	MeV
β^- Decay Energy:	0.982189	±	0.012689	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: 15.89 min ( 953.4 sec., λ = 0.000727027 s^-1)
Mode of decay:
E.C.
to
120
50
Sn
(Q = 2.681 MeV)
Meta state at 0.000 Mev
Spin: 8- 15.89
Half life: 5.76 days ( 497664 sec., λ = 1.3928×10^-06 s^-1)
Mode of decay:
E.C.
to
120
50
Sn
(Q = 2.681 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	15.9 m	1+	2.3(2)		[121Sb]	AB	PR 175 65 (68)
0	5.76 d	8-	2.34(1)		[122Sb]	NMR/ON	NP A221 1 (74)
78	247 ns	3+	+2.584(6)			TDPAD	PL 64B 151 (76)
				0.41(4) st	[121Sb]	TDPAD	PR C26 493 (82)

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