Difference between Nuclear Fusion and Nuclear Fission
Process
Nuclear Fusion
The combination of two smaller atoms to create a large atom releasing energy
Nuclear Fission
The splitting of a nucleus into smaller particles, releasing a high amount of energy
Rarity
Nuclear Fusion
Common in stars such as the Sun
Nuclear Fission
Not common in nature
Conditions
Nuclear Fusion
Requires high temperature and high pressure
Nuclear Fission
May require high-speed neutrons
Energy Production
Nuclear Fusion
Reactions of light nuclei produce very high energy;
Reactions of heavy nuclei may not release energy
Nuclear Fission
Produces high energy