The first chain reaction was achieved in Chicago 1942, under Enrico Fermi
Fissile means that an isotope is capable of supporting a sustained nuclear chain reaction.
the first sustained and controlled nuclear chain reaction by Enrico Fermi in 1942
We know that critical mass can be achieved in a nuclear reactor. If it could not, we'd not be able to get a chain reaction and generate heat to generate power. Reactors don't have critical mass when the control rods are in, but pull the rods, start the reactor up and away you go!
A nuclear chain reaction nuclear fission
Neutron particle is needed to begin nuclear chain reaction.
A nuclear chain reaction nuclear fission
In most cases neutrons are emitted and capable of maintaining a nuclear chain reaction
moderator
In actuality, a spontaneous fission event begins a nuclear chain reaction. It kick starts a nuclear chain reaction. And a neutron from that fission will initiate another fission to continue and rev up that nuclear chain reaction.
In most cases neutrons are emitted and capable of maintaining a nuclear chain reaction
The idea of nuclear fusion occurring at room temperature is called cold fusion.