element

Information about Lead-202:


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Mass-Energy Data:

Atomic Mass:	201.972144	±	0.000011	amu
Excess Mass (Δ):	-25.947892	±	0.009855	MeV
Binding Energy:	1592.202120	±	0.009859	MeV
β^- Decay Energy:	-5.151830	±	0.052002	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: 0+
Half life: 52500 years ( 1.65585×10⁺¹² sec., λ = 4.18605×10^-13 s^-1)
Mode of decay:
E.C.
to
202
81
Tl
(Q = 0.050 MeV)
Mode of decay:
α
to
198
80
Hg
(Q = 2.598 MeV) Branch ratio: <1.00 %
Meta state at 2.169 Mev
Spin: 9- 52500
Half life: 3.53 h ( 12708 sec., λ = 5.45442×10^-05 s^-1)
Mode of decay: γ (IT) (Q = 2.170 MeV) Branch ratio: 90.50 %
Mode of decay:
E.C.
to
202
81
Tl
(Q = 2.220 MeV) Branch ratio: 9.50 %
Possible parent nuclides:
E.C. from
202
83
Bi

α from
206
84
Po

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
1384	1.97 ns	4+	+0.008(16)			IPAC	ZP A280 371 (77)
2170	3.62 h	9-	-0.2276(7)		[207Pb]	ABLRFS	NP A451 471 (86)
				+0.58(9) st		ABLRFS	NP A451 471 (86)
2208	65 ns	7-		0.28(2)	[206Pb 4027]	TDPAD	AECL-6680 27 (79)
4091+x	110 ns	16+	-0.67(16)			TDPAD	NP A458 225 (86)
5242+y	107 ns	19-	-1.88(6)			TDPAD	HFI 34 73 (87)/NP A475 338 (87)

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