12 h 38 min, 17 févr. 1869 ans - Dmitri Mendeleev - Periodic Table
Description:
Mendeleev created a table that ordered all known elements based on their atomic weight, there was a recurring pattern of properties between the groups of elements.Ajouté au bande de temps:
Date:
12 h 38 min, 17 févr. 1869 ans
Maintenaint
~ Il y a 156 ans