john dalton descbribed matter as being composed of atoms. How is his 200-yea-old atomic model different from the curent atomic model
John Dalton's atomic model was a simple model that described atoms as indivisible and indestructible particles. He believed that all atoms of the same element were identical and that atoms of different elements could combine in fixed ratios to form compounds. However, his atomic model had some limitations and did not account for the existence of subatomic particles like protons, neutrons, and electrons.
The current atomic model, on the other hand, is based on quantum mechanics and is much more complex than Dalton's model. It accounts for the existence and behavior of subatomic particles, including their location within atoms and the ways they interact with each other. The current atomic model also recognizes the existence of isotopes and subatomic particles like quarks.
Overall, while John Dalton's atomic model was an important first step in our understanding of the structure of matter, it was limited in its scope and accuracy compared to the current atomic model.