15 oct. 1808 - John Dalton
Description:
Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass.Ajouté au bande de temps:
Date:
15 oct. 1808
Maintenaint
~ Il y a 215 ans
