Glossary term: Fission nucléaire
Description: La fission nucléaire est un processus au cours duquel le noyau d'un élément lourd se divise en deux noyaux plus légers. La masse de la matière restante est inférieure à celle du noyau d'origine, tandis que le déficit de masse est libéré sous forme d'énergie.
Les deux noyaux plus légers produits par la fission nucléaire sont souvent eux-mêmes radioactifs et peuvent libérer de l'énergie supplémentaire par désintégration radioactive.
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of this term and its definition is still awaiting approval
The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".
