Radioactivité3 Energie libérée par une désintégration Exercice dapplication

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Dans cette vidéo, on va: • 1- Etablir les deux formules donnant l'énergie par un noyau radioactif lors de sa désintégration. • 2- Définir le défaut de masse d'une réaction. • 3- Resoudre un exercice 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