Atomic Models - Thomson and Rutherford

The video tutorial explores the evolution of atomic models, starting with the billiard ball model and J.J. Thomson's plum pudding model, which introduced the concept of electrons within a positively charged sphere. It then discusses Rutherford's gold foil experiment, which led to the discovery of the nucleus and the proposal of a new atomic model where electrons orbit a central nucleus. The video also covers the concepts of atomic number, mass number, isotopes, and isobars, highlighting the limitations of Rutherford's model in explaining atomic spectra.

What was the accepted model of the atom before J.J. Thomson's discovery?

Describe J.J. Thomson's model of the atom.

What were the main observations from Rutherford's gold foil experiment?

How did Rutherford's model of the atom differ from Thomson's model?

What limitations does Rutherford's atomic model have?

What is the significance of atomic number and mass number in an atom?

Explain the concept of isotopes and give an example.