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

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 

221Ac    Half-lifeBoson, 89p 132ntitle icon
52 msSpin 3/2 Parity -1

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Atomic Weight221.015591248
Mass Excess14.523155MeV
Binding Energy7.690539MeV
Magnetic MomentN/A
Quadrupole MomentN/A
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Decay Chain Image

Decay chain image generated by Mathematica's GraphPlot and IsotopeData functions from Wolfram Research, Inc..