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

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 

208Ac    Half-lifeFermion, 89p 119ntitle icon
97.msSpin 3 Parity 1

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ProbabilityModeDecay EnergyDaughter
99.%α7726.8keV204Fr
1.%β+8024.1keV208Ra
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YieldNuclide
36.949478473999996%200Hg
0.0006406230113099998%192Pt
4.213696500000001×10-8%208Pb
2.5624920452399993×10-11%188Os
Unknown196Pt
Unknown180Hf
Unknown176Hf
Atomic Weight208.011551551
AbundanceNone
Mass Excess10.760201MeV
Binding Energy7.684831MeV
Magnetic MomentN/A
Quadrupole MomentN/A
 
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Decay chain image generated by Mathematica's GraphPlot and IsotopeData functions from Wolfram Research, Inc..