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#44 Ruthenium - rarity BROWNIAN-MANIACS
| 1st ionization energy | 7.361 eV | 0.85% |
|---|---|---|
| appearance | Silvery white metallic luster | 1.69% |
| atomic mass | 101.07 u | 0.85% |
| atomic number | 44 | 0.85% |
| atomic radius | 207 picometers (van der Waals radius) | 2.54% |
| boiling point | 4423 K or 4150 °C or 7502 °F | 0.85% |
| cas number | 7440-18-8 | 0.85% |
| cas number of (cl2) | - | 99.15% |
| category | Transition metals | 25.42% |
| crystal structure | HCP (Hexagonal close packing) | 6.78% |
| density | 12.37 g/cm3 | 0.85% |
| electronegativity | 2.2 (Pauling scale) | 5.08% |
| electronic configuration | [Kr] 4d7 5s1 | 0.85% |
| electrons | 44 | 0.85% |
| electrons arrangement | 2, 8, 18, 15, 1 | 0.85% |
| main isotopes | 102Ru | 0.85% |
| melting point | 2607 K or 2334 °C or 4233 °F | 0.85% |
| neutrons | 57 | 0.85% |
| position | Group: 8, Period: 5, Block: d | 0.85% |
| rarity | BROWNIAN-MANIACS | 33.33% |
| state | Solid | 72.88% |
| sublimation point | - | 99.15% |
| symbol | Ru | 0.85% |
| valence electrons | - | 61.02% |
| who discovered | Karl Ernst Claus in 1844 | 0.85% |
Total Rarity Score: 1914.71
Rarity: #68/354