| Lutetium | |
|---|---|
| Properties | |
| Atomic symbol | Lu |
| Atomic number | 71 |
| Classification | Metallic |
| Atomic mass | 174.967 amu |
| Other Information | |
| Date of discovery | 1907 |
| Name of discoverer | Georges Urbain, Carl Auer von Welsbach and Charles James |
| Name origin | From Lutetia, the ancient name of Paris. |
| Uses | Used in alloys and can be used as a catalyst in cracking, hydrogenation, polymerization and alkylation. It's primary use is in chemical research. |
| Obtained from | Found with ytterbium in gadolinite and xenotime. Its chief ores are monazite and bastnasite. |
Lutetium is the hardest and densest of the rare-earth metals.