// todo need optimize like in event.jsp. Add indexing or not indexing this page. Mendeleev (11 lugl 1834 anni – 27 dic 1907 anni) (Il nastro del tempo)

Mendeleev (11 lugl 1834 anni – 27 dic 1907 anni)

Descrizione:

- Demonstrated a connection between atomic mass and elements' properties
- Arranged the elements in order of increasing atomic mass
- Predicted the existence and properties of undiscovered elements