What percentage of the time does a Uranium-235 nucleus absorb a thermal neutron to actually split apart and undergo nuclear ssion? What is the minimum number of neutrons and the maximum number of...

What percentage of the time does a Uranium-235 nucleus absorb a thermal neutron to actually split apart and undergo nuclear ssion?

What is the minimum number of neutrons and the maximum number of neutrons that the thermal ssion of Uranium-235 can produce?