HHomeBackground Color:He
LiBeFrancium Main PageBlack White GrayBCNOFNe
NaMgFrancium Pictures PageAlSiPSClAr
KCaFrancium Technical DataScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLrRfDbSgBhHsMtDsRgCnNhFlMcLvTsOg

Isotopes of Francium (click to see decay chain):
199Fr  200Fr  201Fr  202Fr  203Fr  204Fr  205Fr  206Fr  207Fr  208Fr  209Fr  210Fr  211Fr  212Fr  213Fr  214Fr  215Fr  216Fr  217Fr  218Fr  219Fr  220Fr  221Fr  222Fr  223Fr  224Fr  225Fr  226Fr  227Fr  228Fr  229Fr  230Fr  231Fr  232Fr 

199Fr    Half-lifeBoson, 87p 112ntitle icon
12 msSpin 1/2 Parity 1

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ProbabilityModeDecay EnergyDaughter
100%α7.8123MeV195At
Unknownβ+7.2568MeV199Rn
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Atomic Weight199.007258147
AbundanceNone
Mass Excess6.760921MeV
Binding Energy7.695312MeV
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..