HHomeBackground Color:He
LiBeActinium Main PageBlack White GrayBCNOFNe
NaMgActinium Pictures PageAlSiPSClAr
KCaActinium Technical DataScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLrRfDbSgBhHsMtDsRgCnNhFlMcLvTsOg

Isotopes of Actinium (click to see decay chain):
206Ac  207Ac  208Ac  209Ac  210Ac  211Ac  212Ac  213Ac  214Ac  215Ac  216Ac  217Ac  218Ac  219Ac  220Ac  221Ac  222Ac  223Ac  224Ac  225Ac  226Ac  227Ac  228Ac  229Ac  230Ac  231Ac  232Ac  233Ac  234Ac  235Ac  236Ac 

227Ac    Half-lifeBoson, 89p 138ntitle icon
21.772 ySpin 3/2 Parity -1

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ProbabilityModeDecay EnergyDaughter
98.62%β-44.765keV227Th
1.38%α5.04219MeV223Fr
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YieldNuclide
100.2763136635%207Pb
8.9×10-8%205Tl
Atomic Weight227.027752127
AbundanceNone
Mass Excess25.850941MeV
Binding Energy7.650701MeV
Magnetic Moment1.1 μ
Quadrupole Moment1.7
 
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Decay chain image generated by Mathematica's GraphPlot and IsotopeData functions from Wolfram Research, Inc..