Chemistry Class 9th New Book 2026 | Chapter 2 | Discovery of Neutron and Nucleus |

Lecture by Prof. Muhammad Iqbal Kamboh In this Chemistry Class 9th New Book 2026 lecture, Chapter 2 explains the discovery of neutron and nucleus in an easy and clear way. Learn about the neutron, its charge and mass, fundamental particles of an atom, and the discovery of the nucleus by Lord Rutherford. This lecture also explains Rutherford’s gold foil experiment, the structure of an atom, extra-nuclear portion, strong nuclear force, and the charge and mass of electron, proton, and neutron.