1 janv. 1817 - Johann Wolfgang Döbereiner
Description:
At this time the periodic table did not existed and chemists were trying to find a way to organize the known elements. Döbereiner found a pattern to organize elements with similar chemical and physical properties and named them triads.Ajouté au bande de temps:
Date:
1 janv. 1817
Maintenaint
~ Il y a 208 ans