A. Rayleigh
B. Ramsay
C. Lockerey
D. Dalton
| Gas | Discoverer(s) |
| Oxygen | Joseph Priestley, Carl Wilhelm Scheele |
| Hydrogen | Henry Cavendish |
| Nitrogen | Daniel Rutherford |
| Carbon dioxide | Joseph Black |
| Chlorine | Carl Wilhelm Scheele |
| Neon | Morris Travers, Sir William Ramsay |
| Argon | Lord Rayleigh, Sir William Ramsay |
| Helium | Sir William Ramsay, Per Teodor Cleve |
| Krypton | Sir William Ramsay, Morris Travers |
| Xenon | Sir William Ramsay, Morris Travers |
| Radon | Friedrich Ernst Dorn |
| Fluorine | Henri Moissan |
Submitted by :- Jamil Ahmed