| Answer | Crossword Clue |
|---|---|
| HELIUM | Scientific discovery of 1868 |
| ARGON | Scientific discovery of 1894 |
| NEON | Scientific discovery of 1898 |
| DNA | Scientific discovery of 1869 |
| RADON | Scientific discovery of 1900 |
| nomothetic | Of or relating to the study or discovery of general scientific laws |
| idiographic | Of or relating to the study or discovery of particular scientific facts and processes, as distinct from general laws |
