| Cerium [Ce] (CAS-ID: 7440-45-1) | |
| An: 58 N: 82 Am: 140.116 | |
| Group Name: Lanthanoid | |
| Block: f-block Period: 6 (lanthanoid) | |
| State: solid at 298 K | |
| Colour: silvery white Classification: Metallic | |
| Boiling Point: 3699K (3443'C) | |
| Melting Point: 1071K (795'C) | |
| Density: 6.770g/cm3 | |
 Discovery Information |
| Who: W. von Hisinger, J. Berzelius , M. Klaproth |
| When: 1803 |
| Where: Sweden/Germany |
| Name Origin |
| From the asteroid Ceres discovered in 1801. |
| Sources |
| Most abundant rare earth metal. Found in many minerals like monazite. |
| Uses |
| Used in alloys to make them heat-resistant. |
| Notes |
| Cerium is the most abundant of the rare earth elements , making up about 0.0046% of the Earth's crust by weight. |
| Only europium is more reactive than cerium among rare earth elements . |
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