Nuclear Fission
The splitting of a heavy atomic nucleus into smaller nuclei, releasing enormous energy.
Also: fission · atom splitting
Definition
Nuclear fission is a nuclear reaction in which the nucleus of a heavy atom, such as uranium-235 or plutonium-239, absorbs a neutron and splits into two smaller nuclei, releasing additional neutrons and a tremendous amount of energy as described by E = mc2. These released neutrons can trigger further fissions in a chain reaction. Fission is the energy source in nuclear power plants and atomic bombs.
Example
“In a nuclear power plant, uranium fuel rods undergo controlled fission chain reactions; the heat generated boils water, which drives steam turbines to produce electricity for the grid.”
Usage Examples
- 1
“The team applied nuclear fission best practices to improve their chemistry outcomes significantly.”
- 2
“Understanding nuclear fission is essential for anyone building a career in STEM.”
When & How to Use
Use 'Nuclear Fission' when working in Chemistry contexts where nuclear fission is a nuclear reaction in which the nucleus of a heavy atom, such as uranium-235 or plutonium-239, absorbs a neutron and splits into two smaller nuclei, releasing additional neutrons and a tremendous amount of energy as described by e = mc2.
- ▸Applying nuclear fission principles during a chemistry project or initiative
- ▸Explaining nuclear fission to a junior team member or stakeholder unfamiliar with STEM
- ▸Evaluating options or proposals using nuclear fission as a decision-making criterion
Etymology & Origin
The term 'Nuclear Fission' derives from professional usage and entered STEM professional usage as the field formalised in the 20th century.
History & Evolution
The concept of nuclear fission has evolved alongside STEM. Early practitioners relied on informal methods; structured approaches emerged with the professionalisation of chemistry in the mid-20th century. Today, nuclear fission is a standard part of STEM practice globally.
Synonyms
- atom splitting
- nuclear splitting
- fission reaction
Antonyms / Opposites
- nuclear fusion
Images
CC-licensed · free to useVideo
Related Terms
- Nuclear Fusion
- Chain Reaction
- Radioactive Decay
- Binding Energy