| Content-Type | image/gif |
|---|---|
| Content-Length | 584.39 kB |
| Size | 512x512 |
#58 Cerium - rarity BROWNIAN-MANIACS
| 1st ionization energy | 5.539 eV | 0.85% |
|---|---|---|
| appearance | Silvery white | 6.78% |
| atomic mass | 140.12 u | 0.85% |
| atomic number | 58 | 0.85% |
| atomic radius | 235 picometers (van der Waals radius) | 0.85% |
| boiling point | 3716 K or 3443 °C or 6229 °F | 0.85% |
| cas number | 7440-45-1 | 0.85% |
| cas number of (cl2) | - | 99.15% |
| category | Inner transition metals | 23.73% |
| crystal structure | FCC (Face centered cubic) at room temperature | 0.85% |
| density | 6.69 g/cm3 | 0.85% |
| electronegativity | 1.12 (Pauling scale) | 0.85% |
| electronic configuration | [Xe] 4f1 5d1 6s2 | 0.85% |
| electrons | 58 | 0.85% |
| electrons arrangement | 2, 8, 18, 19, 9, 2 | 0.85% |
| main isotopes | 140Ce | 0.85% |
| melting point | 1068 K or 795 °C or 1463 °F | 0.85% |
| neutrons | 82 | 2.54% |
| position | Group: lanthanides, Period: 6, Block: f | 6.78% |
| rarity | BROWNIAN-MANIACS | 33.33% |
| state | Solid | 72.88% |
| sublimation point | - | 99.15% |
| symbol | Ce | 0.85% |
| valence electrons | - | 61.02% |
| who discovered | Wilhelm Hisinger, Jöns Jakob Berzelius, Martin Heinrich Klaproth (in 1803) | 0.85% |
Total Rarity Score: 1969.08
Rarity: #55/354