element

Information about Cesium-120:


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

Mass-Energy Data:

Atomic Mass:	119.920678	±	0.000011	amu
Excess Mass (Δ):	-73.887752	±	0.009870	MeV
Binding Energy:	999.417052	±	0.009871	MeV
β^- Decay Energy:	-5.000000	±	0.300000	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: high
Half life: 57 s ( 57 sec., λ = 0.0121605 s^-1)
Mode of decay:
E.C.
to
120
54
Xe
(Q = 7.920 MeV)
Mode of decay: E.C. +
1
1
p⁺ to
119
53
I
(Q = 5 2.470 MeV) Branch ratio: <=1.0E-5 %
Meta state at 0.000 Mev
Spin: 2 57
Half life: 64 s ( 64 sec., λ = 0.0108304 s^-1)
Mode of decay:
E.C.
to
120
54
Xe
(Q = 7.920 MeV)
Possible parent nuclides:
E.C. from
120
56
Ba

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	64 s	2+	+3.87(2)		[133Cs]	ABLS	NP A468 1 (87)
				+1.45(2) st		ABLS	NP A468 1 (87)
			+3.92(5)		[133Cs]	AB	PL 76B 565 (78)

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