Nuclear chain reaction

A nuclear chain reaction occurs when a nuclear reaction causes the release of energy, which then initiates further reactions. In a fission reaction, for example, a heavy atom like uranium absorbs a neutron, becomes unstable, and splits into smaller atoms, releasing energy and more neutrons. These newly released neutrons can strike other heavy atoms, causing them to split as well. This self-sustaining process can produce a large amount of energy. It’s the principle behind both nuclear power plants and atomic bombs, highlighting its potential for both constructive and destructive applications.