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 

221Fr    Half-lifeBoson, 87p 134ntitle icon
4.833333333333 mSpin 5/2 Parity -1

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ProbabilityModeDecay EnergyDaughter
100%α6.45776MeV217At
0.0048%β-314.31keV221Ra
8.8×10-11%14CN/A207Tl
Show Ultimate Decay Products
Atomic Weight221.014254762
AbundanceNone
Mass Excess13.278226MeV
Binding Energy7.703252MeV
Magnetic Moment1.58 μ
Quadrupole Moment-1
 
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Decay chain image generated by Mathematica's GraphPlot and IsotopeData functions from Wolfram Research, Inc..