As Francium is the most unstable element, how much more energy will it generate if it is split compared to, let’s say Uranium?

Question

As Francium is the most unstable element, how much more energy will it generate if it is split compared to, let’s say Uranium?

In: Physics

Answer 1

Francium primarily decay via alpha decay, with average energies of ~6.5MeV. Comparing this to the fission of uranium, with average energies of ~200MeV, its about 30 times weaker. If Francium were to fission the energy release would likely be comparable to uranium if not slightly less due to the difference in mass.