Respuesta :
If a uranium atom absorbs a neutron it will be unstable, and will generally split into two fragments. This process, the splitting of a large nucleus into two smaller ones, is known as NUCLEAR FISSION.
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Answer: Your answer would be C. nuclear fission
Explanation:
This is the answer because, nuclear fission happens when the nucleus of an atom is split into two pieces. This releases alot of heat. In other words a nuclear reactor, a chain reaction occurs. Meaning when one atom is split it causes other atoms to split as well.