Lecture
This lecture covers the historical development of atomic theory, starting from Democritus' concept of atoms to Bohr's model. It includes topics such as the laws of conservation of mass, definite proportions, and multiple proportions. The lecture also delves into the scientific method, the discovery of subatomic particles, and the emission spectra of atoms. Key concepts like the Bohr model, the hydrogen spectrum, and the limitations of the model are discussed, along with important breakthroughs by scientists like Einstein. The session concludes with a summary of the key ideas presented.