4 h 31 m, 15 fev 1803 ano - Dalton’s Atomic Theory: all matter is made of atoms that are indivisible and indestructible, all atoms of a given element are identical in mass and property, compounds are formed by the combination of two or more atoms of different kinds, and a chemical reaction is a rearrangement of atoms.
Adicionado na linha do tempo:
Data:
4 h 31 m, 15 fev 1803 ano
Agora
~ 221 years ago
