| Content-Type | image/gif |
|---|---|
| Content-Length | 748.25 kB |
| Size | 512x512 |
#95 Americium - rarity SPINNIN'IN
| 1st ionization energy | 5.993 eV | 33.33% |
|---|---|---|
| appearance | Silvery-white metallic appearance | 33.33% |
| atomic mass | 243 u | 33.33% |
| atomic number | 95 | 33.33% |
| atomic radius | 244 picometers (van der Waals radius) | 33.33% |
| boiling point | 2880 K or 2607 °C or 4725 °F | 33.33% |
| cas number | 7440-35-9 | 33.33% |
| cas number of (cl2) | - | 100% |
| category | Inner transition metals | 66.67% |
| crystal structure | Double hexagonal close packed | 66.67% |
| density | 13.67 g/cm3 | 33.33% |
| electronegativity | 1.3 (Pauling scale) | 33.33% |
| electronic configuration | [Rn] 5f7 7s2 | 33.33% |
| electrons | 95 | 33.33% |
| electrons arrangement | 2, 8, 18, 32, 25, 8, 2 | 33.33% |
| main isotopes | 241Am and 243Am | 33.33% |
| melting point | 1449 K or 1176 °C or 2149 °F | 33.33% |
| neutrons | 148 | 33.33% |
| position | Group: actinides, Period: 7, Block: f | 33.33% |
| rarity | SPINNIN'IN | 33.33% |
| state | Solid | 66.67% |
| sublimation point | - | 100% |
| symbol | Am | 33.33% |
| valence electrons | - | 100% |
| who discovered | Glenn T. Seaborg, Albert Ghiorso, Leon O. Morgan, Ralph A. James (in 1944) | 33.33% |
Total Rarity Score: 64.5
Rarity: #2/3