I would think that neutrons can break up any nucleus apart. Why not just use aluminium or iron. Is it because of E=mc^2 ? Greater mass equals greater energy? Would a bomb made of another material be less radioactive?
TIA
In: 30
Atoms have varying degrees of stability.
U-235, U-233, and Plutonium-239 are *far* more unstable than a generic iron or aluminum atom.
Due to this, one can easily start a fission chain reaction with these fuels with a source of neutrons.
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