5 janv. 1914 - H.G.J Moseley: Atomic Structure He determined that "The atomic number of an element is equal to the number of protons in the nucleus". He also came to the conclusion that there were 3 unknown elements (there are actually 4 unknown ) between aluminium and gold.
Ajouté au bande de temps:
Date:
5 janv. 1914
Maintenaint
~ Il y a 111 ans