apr 13, 1803 - John Dalton discovered All matter is made of atoms; Atoms are indivisible and indestructible; All atoms of a given element are identical in mass and properties; Compounds are formed by a combination of two or more different kinds of atoms; A chemical reaction is a rearrangement of atoms
Added to timeline:
Date:
apr 13, 1803
Now
~ 221 years ago
