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Nuclear Fission

OCR A-level PhysicsNuclear EnergyLesson 5 of 8

Fission of the uranium-235 (or plutonium-238) nuclei can be induced by bombarding the nucleus with neutrons. Neutrons are released with the daughter nuclei and these neutrons are capable of causing further fissions if they collide with other uranium-235 nuclei. This results in a chain reaction and a huge amount of energy is released in a short time.

Diagram

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Key terms in this lesson

binding energy
The energy needed to separate a nucleus completely into its individual, unbound protons and neutrons.

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