| Discovery | Scientist |
| Electron | J.J. Thomson |
| Proton | Rutherford |
| neutron | James Chadwick |
| Atom | John Dalton |
| Atomic Structure | Neil Bohr & Rutherford |
| Law of motion | Newton |
| Radioactivity | Henry Becquerel |
| Radium | Madam Curie |
| Principle of Relativity | Albert Einstein |
| Electromagnetic Induction | Michael Faraday |
| Raman Effect | C. V. Raman |
| X-Rays | Roentgen |
| Quantum theory | Max Plank |
| Photo electric effect | Albert Einstein |
| Law of electrostatic attraction | Coulomb |
| Photography (on metal) | J. Neepse |
| Photography (on paper) | W. Fox Talbot |
| Periodic table | Mandeleev |
| Law of Electric resistance | G.S. Ohm |