Darby
Epochal Historian
Bombarded? By what? What do you think is the cause of nuclear fission? Bombardment by thermal neutrons. Unstable nuclei are in a situation where the nuclear binding force is on the edge of being overcome by the Coloumb force. Any additional input of energy causes the nucleons to move around and while they are moving the nucleus "unzips". We usually call that nuclear fission. If the material is fissile the unzipping is anythng but efficient. A couple of microseconds later you have a 20 kt+ release of energy.
If that's what you want why bother dicking around with element 113. U-233 or U-235 will do the trick and Uranium is reasonably abundant relative to an element of which we've only manager to create a few atoms, especially considering that Uranium has a half-life measured in eons versus an element that has a half-life measured in seconds or less.
And what the hell is artificial stabiliy? A nucleus either has X protons and Y neutrons or it doesn't. The two forces at work, EM and the strong force, are the two most powerful forces at hand. There's nothing more powerful that you can bring to bear to stabilize the situation. The nucleus will self stabilize - we call that alpha, beta (+, -) or neutron radiation (emission, decay). Yes, there's also gamma emission but that is the result of the nucleus rearranging itself after a change to return to its lowest energy state...and it does that by emitting photons...photons that tend toward the gamma and x-ray spectrum. The real kicker is how many prompt neutrons are released per fission, the density of the mass and the mean free path required to neutron capture versus neutron escape from the core mass. If the number of neutrons is greater than 1 and the mean free path is less than the radius of the mass you have a super critical mass and if it is a fissle material a nuclear "event" (atomic bomb as it were) will result, i.e. BMFKB.
