HHomeBackground Color:He
LiBeAstatine Main PageBlack White GrayBCNOFNe
NaMgAstatine Pictures PageAlSiPSClAr
KCaAstatine Technical DataScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLrRfDbSgBhHsMtDsRgCnNhFlMcLvTsOg

Isotopes of Astatine (click to see decay chain):
193At  194At  195At  196At  197At  198At  199At  200At  201At  202At  203At  204At  205At  206At  207At  208At  209At  210At  211At  212At  213At  214At  215At  216At  217At  218At  219At  220At  221At  222At  223At 

199At    Half-lifeBoson, 85p 114ntitle icon
7.03 sSpin 9/2 Parity -1

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ProbabilityModeDecay EnergyDaughter
89%α6.7797MeV195Bi
Unknownβ+5.3736MeV199Po
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Atomic Weight198.990532254
AbundanceNone
Mass Excess-8.819148MeV
Binding Energy7.781466MeV
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..