About 102,000 results
Open links in new tab
  1. Nuclear fission - Wikipedia

    Nuclear fission produces energy for nuclear power and drives the explosion of nuclear weapons. Both uses are possible because certain substances called nuclear fuels undergo fission when struck by …

  2. Nuclear fission | Examples & Process | Britannica

    Nuclear fission, subdivision of a heavy atomic nucleus, such as that of uranium or plutonium, into two fragments of roughly equal mass. The process is accompanied by the release of a large amount of …

  3. Fission and Fusion: What is the Difference? - Department of Energy

    Apr 1, 2021 · Fission occurs when a neutron slams into a larger atom, forcing it to excite and split into two smaller atoms—also known as fission products. Additional neutrons are also released that can …

  4. What Is Nuclear Fission and How Does It Release Energy?

    4 days ago · Nuclear fission is the splitting of a heavy atom’s nucleus into two smaller nuclei, releasing a massive burst of energy in the process. A single uranium-235 atom splitting releases about 215 …

  5. What is Fission? - Live Science

    Jul 19, 2023 · Fission is the process by which an atom splits into two, generating two smaller atoms and a tremendous amount of energy. Fission powers nuclear bombs and power plants.

  6. Nuclear Fission Definition and Examples

    May 13, 2023 · Nuclear fission is a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into two or more smaller, lighter nuclei. This process often produces gamma …

  7. FISSION Definition & Meaning - Merriam-Webster

    Georgina Jedikovska, Interesting Engineering, 27 Feb. 2026 Nuclear power plants generate electricity by splitting the U-235 atom in a process called fission, which produces heat used to turn a steam …

  8. Fission - Understand Energy Learning Hub

    Nuclear fission is the process of splitting a large atom into two smaller atoms and releasing a LOT of heat, making it an extremely energy dense resource. That heat is used to boil water, make steam, …

  9. What Is Nuclear Fission? The Physics Behind Atomic Power

    May 25, 2025 · Nuclear fission is the process by which the nucleus of an atom splits into two or more smaller nuclei, accompanied by the release of a large amount of energy. This seemingly simple …

  10. What Is Nuclear Fission? - ScienceAlert

    Nuclear fission is the splitting of an atom's nucleus to create two (or more) lighter elements. Though it can occasionally occur spontaneously in isotopes of some heavy elements, such as thorium and …