History of Atomic Theory

The history of atomic theory, from its controversial beginnings to its acceptance in chemistry. Democritus introduced the concept of atoms as indivisible particles, and John Dalton provided the first empirical evidence of atoms.

John Dalton's groundbreaking contributions to atomic theory, including the concept of atoms combining in whole number ratios and the explanation of chemical reactions. His work solidified the idea of atoms as fundamental units of matter.

The discovery of electrons as negatively charged particles by Thomson, leading to the plum pudding model and the realization of positively charged nucleus within atoms.

Rutherford's experiment with alpha particles, which revealed the existence of the nucleus and led to the development of the nuclear model of the atom.

Summary of the atomic model evolution, from Democritus to Rutherford's nuclear model. The video concludes with the acknowledgement of atoms' existence in the field of chemistry.