In a nuclear reactor, what is a chain reaction?

Fission releases neutrons that trigger more fission.

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  1. Electrons split into smaller charges
  2. Fission releases neutrons that trigger more fission ✔
  3. Fusion joins atoms without releasing particles

Why: Fission neutrons can cause further fissions, sustaining a chain reaction when conditions allow.

Huh, didn't know that: Fission neutrons can cause further fissions, sustaining a chain reaction when conditions allow.

The dad joke
One fission leads to another, like a chain of events.
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References

Answer: Fission releases neutrons that trigger more fission. Fission neutrons can cause further fissions, sustaining a chain reaction when conditions allow.

  1. Scouting America: Nuclear Science www.scouting.org/merit-badges/nuclear-science
    use it to explain how a chain reaction could be started
    Checked 2026-11-07.

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