Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Nuclear energy is the potential energy stored in the nucleus of an atom. It is released through nuclear reactions such as fission (splitting) or fusion (combining) of atomic nuclei.
Related terms
Fission: The splitting of an atomic nucleus into two smaller nuclei, accompanied by the release of a large amount of energy.
Fusion: The combining of two atomic nuclei to form a larger nucleus, also releasing a significant amount of energy.
Radioactive Decay: The spontaneous breakdown of unstable atomic nuclei, resulting in the release of radiation.