NUCLEAR FISSION + NUCLEAR FUSION

What is nuclear fission

splitting of a large and unstable nucleus

When does fission occur

unstable nucleus must absorb a neutron

What is the process of nuclear fission

nucleus splits into two smaller nuclei, emits two or three neutrons plus gamma rays

What is released by nuclear fission

energy is released

What do all fission products have

kinetic energy

What may the neutrons emitted from nuclear fission do

go on to start a chain reaction

How can a chain reaction be controlled

in a nuclear reactor, controls the energy released

What is an explosion caused by a nuclear weapon caused by

an uncontrolled chain reaction

What is nuclear fusion

joining of two light nuclei to form a heavier nucleus

What is some of the mass converted into in nuclear fusion

the energy of radiation