1. Ionic reactions
  2. Biological reactions
  3. Chemical reactions
  4. Nuclear reactions
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Option 4 : Nuclear reactions

  • There are two main types of nuclear reactions, fission and fusion. Nuclear fission is when the nucleus of a large atom is split into two or more fragments.
  • This releases neutrons and energy. Nuclear fission can occur spontaneously, or it can be started when nuclei are hit by particles.
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