Question

What are the similarities and/or differences between the ancient greeks’ concept of an atom and Dalton’s atomic theory?

Answer 1

Answer:

Similarities

1. All the matter in the world is made up of atoms.
2. Atoms are unalterable.
3. All the compound are made up of molecules ( Democritus knew that atoms combine, but in a Mechanical way)

Differences:

1. According to Dalton's theory, atoms are identically same, but Democritus had no idea about it.
2. Atoms are never created nor destroyed, they just rearrange. (Democritus was unfamiliar with the chemical reactions)