| Content-Type | image/png |
|---|---|
| Content-Length | 8.89 kB |
| Size | 512x512 |
#96 Curium - rarity ZERO-KELVIN
| 1st ionization energy | 6.02 eV | 0.85% |
|---|---|---|
| appearance | Silvery metallic appearance | 1.69% |
| atomic mass | 247 u | 1.69% |
| atomic number | 96 | 0.85% |
| atomic radius | 245 picometers (van der Waals radius) | 2.54% |
| boiling point | 3383 K or 3110 °C or 5630 °F | 0.85% |
| cas number | 7440-51-9 | 0.85% |
| cas number of (cl2) | - | 99.15% |
| category | Inner transition metals | 23.73% |
| crystal structure | Double hexagonal close packed | 5.08% |
| density | 13.51 g/cm3 | 0.85% |
| electronegativity | 1.3 (Pauling scale) | 9.32% |
| electronic configuration | [Rn] 5f7 6d1 7s2 | 0.85% |
| electrons | 96 | 0.85% |
| electrons arrangement | 2, 8, 18, 32, 25, 9, 2 | 0.85% |
| main isotopes | 243Cm and 248Cm | 0.85% |
| melting point | 1613 K or 1340 °C or 2444 °F | 0.85% |
| neutrons | 151 | 1.69% |
| position | Group: actinides, Period: 7, Block: f | 10.17% |
| rarity | ZERO-KELVIN | 33.33% |
| state | Solid | 72.88% |
| sublimation point | - | 99.15% |
| symbol | Cm | 0.85% |
| valence electrons | - | 61.02% |
| who discovered | Glenn T. Seaborg, Albert Ghiorso and Ralph A. James (in 1944) | 0.85% |
Total Rarity Score: 1684.8
Rarity: #90/354