1 janv. 1852 - Henri Becquerel
Description:
Becquerel's main contribution to the atomic theory was his discovery of radioactivity. His discovery allowed later scientists to show how the atom wasn't just a solid sphere, which was a big step in the development of the theory and model.Ajouté au bande de temps:
Date:
1 janv. 1852
Maintenaint
~ Il y a 172 ans
