33
/fr/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 30, 2025
359782
30131
1
Public Timelines
FAQ

1 janv. 1869 - 1869 - Russian chemist Dmitri Mendeleev started the development of the periodic table, arranging chemical elements by atomic mass. He predicted the discovery of other elements, and left spaces open in his periodic table for them. ←Dmitri Mendeleev

Ajouté au bande de temps:

Date:

1 janv. 1869
Maintenaint
~ Il y a 156 ans

Les images: