| Clue | Source | Date |
|---|---|---|
| Silvery-white metal; symbol Ce | Mirror Quiz | 14 Apr 2025 |
| Soft metal on the periodic table | ||
| Metallic element belonging to the lanthanide group whose symbol is Ce (6) | ||
| Soft metal | Thomas Joseph | 21 May 2021 |
| Metallic element, Ce | The Times Concise | 29 May 2019 |
| Atomic no. 58 | Universal | 12 Jul 2018 |
| Atomic no. 58 | ||
| Element Ce | USA Today | 03 Nov 2016 |
| Radioactive element | ||
| Element Ce | ||
| Metal that may ignite if scratched | ||
| Rare-earth element | ||
| One of the lanthanides | ||
| Element of rare-earth group. | ||
| Ductile element. |