|Natural occurance of the process:
|Fission produces many highly radioactive particles.
|Few radioactive particles are produced by fusion reaction, but if a fission "trigger" is used, radioactive particles will result from that
|The energy released by fission is a million times greater than that released in chemical reactions: but lower than the energy released by nuclear fusion
|The Energy released by fusion is three or four times thant the energy released by fission.
|One class of Nuclear weapon is a fission bomb, also known as an atomic bomb or atom bomb
|One class of nuclear weapon is the hydrogen bomb, which uses a fission reaction to "trigger" a fusion reation
|Takes little energy to split two atoms in a fission reaction
|Extremely high energy is required to bring two or more protons close enough that nuclear forces overcome their electrostatic repulsion.