What is Nuclear Fission?

Overview

Nuclear fission occurs when a heavy atomic nucleus, such as uranium or plutonium, absorbs a neutron and becomes unstable. This instability causes the nucleus to split into two smaller nuclei, along with a few neutrons and a large amount of energy. The released neutrons can then cause further fission reactions, leading to a chain reaction that can produce a substantial amount of energy. The process of nuclear fission is harnessed in nuclear power plants to generate electricity. In these plants, controlled fission reactions take place in a reactor, where the heat produced from the splitting atoms is used to produce steam that turns turbines. This method of energy production is considered cleaner than fossil fuels, as it produces minimal greenhouse gas emissions. Nuclear fission also has significant implications for weaponry, as it is the principle behind atomic bombs. The ability to release vast amounts of energy from a small amount of fuel has led to both advancements in energy production and concerns about nuclear proliferation. Understanding fission is crucial in the field of physics, as it illustrates the power and complexity of atomic interactions.