element

Information about Mercury-185:


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

Mass-Energy Data:

Atomic Mass:	184.971983	±	0.000297	amu #
Excess Mass (Δ):	-26.098000	±	0.277000	MeV #
Binding Energy:	1456.704000	±	0.277000	MeV #
β^- Decay Energy:	-6.630000	±	0.487000	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: 1/2-
Half life: 49.1 s ( 49.1 sec., λ = 0.0141171 s^-1)
Mode of decay:
E.C.
to
185
79
Au
(Q = 5.800 MeV) Branch ratio: 94.00 %
Mode of decay:
α
to
181
78
Pt
(Q = 5.778 MeV) Branch ratio: 6.00 %
Meta state at 0.099 Mev
Spin: 13/2+ 49.1
Half life: 21.6 s ( 21.6 sec., λ = 0.0320901 s^-1)
Mode of decay: γ (IT) (Q = 0.099 MeV) Branch ratio: 54.00 %
Mode of decay:
E.C.
to
185
79
Au
(Q = 5.899 MeV) Branch ratio: 46.00 %
Mode of decay:
α
to
181
78
Pt
(Q = 5.877 MeV) Branch ratio: ~0.03 %
Possible parent nuclides:
α from
189
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	55 s	1/2-	+0.509(4)			b-NMR/OP	ZP A325 247 (86)
99.3	27 s	13/2+	-1.017(9)		[193Hg 141]	CLS	ZP A325 247 (86)
				+0.2(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.