The Evolution of atomic models in physical science traces the development of our understanding of atomic structure, from Democritus's initial concept through to modern quantum mechanics. The journey encompasses major breakthroughs in the History and significance of the Cathode Ray Experiment and culminates in our current understanding of Modern atomic theory and subatomic particles discovery.
• Democritus introduced the revolutionary concept of indivisible particles called atoms
• John Dalton established fundamental principles about atomic behavior and properties
• J.J. Thomson's cathode ray experiments led to the discovery of electrons
• Rutherford's gold foil experiment revealed the nuclear structure of atoms
• Modern atomic theory incorporates quantum mechanics and subatomic particles