Isotopes of Francium
Notable Isotopes
222Fr [135 neutrons]
Abundance: synthetic
Half life: 14.2 minutes [ beta- ]
Decay Energy: 2.033MeV
Decays to 222Ra.
223Fr [136 neutrons]
Abundance: 100%
Half life: 22.00 minutes [ beta- ]
Decay Energy: 1.149MeV
Decays to 221Ra.
Half life: 22.00 minutes [ Alpha Decay ]
Decay Energy: 5.430MeV
Decays to 219At.