6 déc. 1826 - 1766-1844 John Dalton
Description:
Atomic theory--1. All is made of atoms
2. Atoms in a given element are identical
3. Atoms combine in whole # ratios
4. Atoms aren't created or destroyed
Ajouté au bande de temps:
Date:
6 déc. 1826
Maintenaint
~ Il y a 199 ans