Isotopes of Iodine
Notes
There are 37 isotopes of iodine and only one, I-127, is stable.
Notable Isotopes
127I [74 neutrons]
Abundance: 100%
Stable with 74 neutrons
129I [76 neutrons]
Abundance: synthetic
Half life: 1.57 x 107 years [ beta- ]
Decay Energy: 0.194 MeV
Decays to 129Xe.
131I (radioiodine) [78 neutrons]
Abundance: synthetic
Half life: 8.02070 days [ beta- ]
Decay Energy: 0.971 MeV
Decays to 131Xe.
Has been used in treating cancer and other pathologies of the thyroid gland.