Question

What is caused in a fission reactor when neutrons strike other nuclei

Chain Reactions
Radioactive Decay
Fusion Reactions
Electron Avalanche

Answer 1

Chain Reactions

Answer 2

its called a chain reaction... released neutrons cause fission in other nuclei, etc

Answer 3

it is only partially correct
when a neutron hits on a nucleus, it will undergo decay and form 2 smaller atoms and 3 neutrons.in a nuclear reactor ,those 3 neutrons bombards with other near by nuclei,and this reaction continues which is called the chain reaction