H Home Background Color: He Li Be Francium Main Page Black White Gray B C N O F Ne Na Mg Francium Pictures Page Al Si P S Cl Ar K Ca Francium Technical Data Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og

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

210Fr     Half-life Fermion, 87p 123n 3.183333333333 m Spin 6 Parity 1 Hide Decay Modes Probability Mode Decay Energy Daughter 60% α 6.6485MeV 206At 40% β+ 5.2295MeV 210Rn Hide Ultimate Decay Products Yield Nuclide 92.532303% 206Pb 5.867697% 202Hg 0.0586770234% 198Hg Atomic Weight 209.996407738 Abundance None Mass Excess -3.34617MeV Binding Energy 7.763136MeV Magnetic Moment 4.4 μ Quadrupole Moment 0.19   Show Element Pictures. Show only decay products of this isotope. Show Decay Image Smaller.

Click any isotope in diagram to see its data. Decay chain image generated by Mathematica's GraphPlot and IsotopeData functions from Wolfram Research, Inc..