1.Uranium-235,after taking a neutron turns into Xe and Sr and 2 neutrons or it turns into Ba and Kr and 3 neutrons or many other things. How it is decided that Ur nucleus will change into what? 2.Why aren't we still using fusion to produce energy? 3. Isomers-what's the reason behind the nucleus having same things(p,n,e) being in different energy states?