Gamma Radiation Definition

Chemistry Glossary Definition of Gamma Radiation

A nucleus decaying by emission of a gamma ray
A nucleus decaying by emission of a gamma ray. Inductiveload/Wikimedia Commons/Public Domain

Gamma Radiation Definition:

High energy photons that are emitted by radioactive nuclei. Gamma radiation is very high-energy ionizing radiation. Gamma rays originate in the nucleus, while X-rays originate in the electron cloud around the nucleus.