THE DAWN OF RADIOCHEMISTRY

Chemical research on radioactivity started in 1898. That year, three s hort key Notes by the Curies reawakened the topic of uranic rays disco vered two years earlier by Becquerel. The discoveries of polonium and radium were milestones in the history of nuclear sciences. The exegesi s of the Notes reveals the progress and processes which ineluctably le d within a few months to the announcement of the existence of elements in amounts invisible at that time.