element

Information about Mercury-187:


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

Mass-Energy Data:

Atomic Mass:	186.969785	±	0.000256	amu #
Excess Mass (Δ):	-28.145000	±	0.239000	MeV #
Binding Energy:	1474.894000	±	0.239000	MeV #
β^- Decay Energy:	-5.947000	±	0.466000	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: 13/2+
Half life: 2.4 min ( 144 sec., λ = 0.00481352 s^-1)
Mode of decay:
E.C.
to
187
79
Au
(Q = 4.900 MeV)
Mode of decay:
α
to
183
78
Pt
(Q = 2 5.080 MeV) Branch ratio: >0.00012 %
Meta state at 0.000 Mev
Spin: 3/2- 2.4
Half life: 1.9 min ( 114 sec., λ = 0.00608024 s^-1)
Mode of decay:
E.C.
to
187
79
Au
(Q = 4.900 MeV)
Mode of decay:
α
to
183
78
Pt
(Q = 5 5.080 MeV) Branch ratio: >0.00025 %
Possible parent nuclides:
E.C. from
187
81
Tl

α from
191
82
Pb

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	2.4 m	13/2+	-1.044(11)		[193Hg 141]	CLS	PL 82B 199 (79)
				+0.5(3) st	[201Hg]	b-NMR/OP	ZP A325 247 (86)
134	1.9 m	3/2-	-0.594(4)			b-NMR/OP	ZP A325 247 (86)
				-0.8(3) st	[201Hg]	b-NMR/OP	ZP A325 247 (86)

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