1 janv. 1906 - 1906 - Discovery of "radioactinium" Hahn discovers "radioactinium", which is now known as actinium-x, an isotope of actinium. This discovery was made while working alongside Ernest Rutherford, the leading chemist at the time.
Ajouté au bande de temps:
Date:
1 janv. 1906
Maintenaint
~ Il y a 119 ans