Answer:
Radioactivity is treated using the discoveries of Antoine Becquerel and Pierre and Marie Curie.
Step-by-step explanation:
Marie Curie is a very famous name in the physical and chemical branch of knowledge. She is associated with the Discovery of 2 elements, namely- Polonium and Radium. Antoine Becquerel has been an eminent figure who discovered radioactivity.
The trio shares the Noble Prize in Physics awarded in 1903.