6. Fission and Fusion reaction

Difference Between Nuclear Fission and Nuclear Fusion

The table below lists the major differences between fusion and fission reactions.

Nuclear FissionNuclear Fusion
Nuclear fission is a nuclear reaction that splits a heavy atom into two or more smaller ones.Nuclear fusion is a nuclear reaction that combines two or more small atoms to form a large atom.
It does not occur naturally.The universe is full of instances of nuclear fusion reactions. Every star uses it to produce energy.
It produces a large quantity of energy.It produces greater energy than the fission reaction.
Does not require a lot of energy to split an atom into two.Requires a lot of heat and pressure for the process to happen.

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