How did current model differ from the previous know idea of matter?

The current model of matter, which includes quantum mechanics and the concept of atomic structure, differs significantly from the earlier idea of matter as indivisible particles, such as the classical atom proposed by Dalton. Modern understanding reveals that atoms consist of subatomic particles (protons, neutrons, and electrons) and that these particles exhibit wave-particle duality and quantum behavior. Additionally, the discovery of phenomena like electron clouds and the uncertainty principle contrasts sharply with the deterministic nature of earlier models. Overall, the current model embraces complexity and probabilistic behavior, reshaping our understanding of the fundamental components of matter.