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the emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei in radioactive substances
- The phenomenon of radioactivity was discovered by Henri Becquerel while studying the properties of uranium salts.
- The effects of ionizing radiation from radioactivity can damage living tissues and cells, leading to potential health risks.
- Marie and Pierre Curie conducted pioneering research on radioactivity, discovering the elements polonium and radium.
- The unit of measurement for radioactivity is the becquerel (Bq), representing one decay per second, or the curie (Ci) in the traditional system.
- Neutrons produced in nuclear reactions can induce radioactivity in materials through neutron activation.
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