33
/it/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 30, 2025
156848
13950
2
Public Timelines
FAQ

1 gen 1811 anni - John Dalton-1st Atomic Theory

Descrizione:

The discovery of the protons, electron, and neutrons (1897-1932) led to the first idea of Dalton’s atomic theory.

His Theory was that
-Atoms cannot be created or destroyed
- All atoms are identical in properties, such as size and mass.
- Atoms are rearranged as a chemical reaction occurs. 
-Compounds are formed by combination of multiple atoms (in whole number ratios).

Aggiunto al nastro di tempo:

16 ott 2017
0
0
469

Data:

1 gen 1811 anni
Adesso
~ 214 years ago