Discovery of isotopes led to understanding (atomic number corresponded with properties > than mass) (19 h 53 min, 1 janv. 1913 ans – 21 h 42 min, 31 déc. 1913 ans)
Description:
by Frederick Soddy. Mendeleev and Meyer thought atomic mass was the main correspondent with properties.Ajouté au bande de temps:
Date:
19 h 53 min, 1 janv. 1913 ans
21 h 42 min, 31 déc. 1913 ans
~ 12 months