element

Information about Radon-212:


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

Mass-Energy Data:

Atomic Mass:	211.990689	±	0.000004	amu
Excess Mass (Δ):	-8.673233	±	0.004143	MeV
Binding Energy:	1652.511276	±	0.004153	MeV
β^- Decay Energy:	-5.128888	±	0.025980	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: 23.9 min ( 1434 sec., λ = 0.000483366 s^-1)
Mode of decay:
α
to
208
84
Po
(Q = 6.385 MeV)
Possible parent nuclides:
E.C. from
212
87
Fr

α from
216
88
Ra

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
1502	8.8 ns	4+	4.0(2)			TDPAD	NP A486 397 (88)
1640	118 ns	6+	5.45(5)			TDPAD	NP A486 397 (88)
1694	0.91 ms	8+	+7.15(2)			TDPAD/SOPAD	NP A317 520 (79)/HFI 4 219 (78)
			7.16(6)			TDPAD	NP A486 397 (88)
				(-)0.17(2)	[B(E2)]	"TDPAD, R"	PC Dafni (87)/NP A441 501 (85)
3358	7.4 ns	14+	15.0(4)			TDPAD	NP A486 397 (88)
4067	29 ns	17-	17.9(2)			TDPAD	NP A486 397 (88)
			17.9(3)			TDPAD	NP A317 520 (79)/JPJS 44 605 (78/)
							PRL 39 389 (77)
6167+x	104 ns	22+	15.8(2)			TDPAD	NP A486 397 (88)
			15.8(2)			TDPAD	NP A317 520 (79)/JPJS 44 605 (78/)
							PRL 39 389 (77)
7135+x	18 ns	25-	17.8(5)			TDPAD	NP A317 520 (79)/JPJS 44 605 (78/)
							PRL 39 389 (77)
7871+x	14 ns	27-	17.0(8)			TDPAD	NP A317 520 (79)/JPJS 44 605 (78/)
							PRL 39 389 (77)
8571+x	154 ns	30+	19.71(9)			TDPAD	NP A317 520 (79)/JPJS 44 605 (78/)
							PRL 39 389 (77)

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