Periodic table

Iodine-127 (I-127)

Identity

Protons
53
Neutrons
74
Mass number
127
Mass
126.9 ± 3.9 u
Mass excess
-88.983 MeV
Spin
5/2+*

Stability

stable

Natural occurrence

100.00 % of iodine

Produced by

All isotopes of iodine