[rohit sharma]

Is it possible to do fission with iodine or tin???

[Enthalpy]

There can be different goals here:
- Obtain a net energy from fission, admitting that all auxiliary means are obtained efficiently.
- Obtain a chain reaction.
- Find a fuel technologically and economically sensible for commercial reactors.

You could check the default mass of iodine and tin as well as from potential fission products.