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#29 Copper - rarity BROWNIAN-MANIACS
| 1st ionization energy | 7.726 eV | 0.85% |
|---|---|---|
| appearance | Reddish orange metallic luster | 0.85% |
| atomic mass | 63.546 u | 0.85% |
| atomic number | 29 | 0.85% |
| atomic radius | 140 picometers (van der Waals radius) | 1.69% |
| boiling point | 2835 K or 2562 °C or 4643 °F | 0.85% |
| cas number | 7440-50-8 | 0.85% |
| category | Transition metals | 25.42% |
| crystal structure | FCC (Face centered cubic) | 11.02% |
| density | 8.96 g/cm3 | 0.85% |
| electronegativity | 1.9 (Pauling scale) | 3.39% |
| electronic configuration | [Ar] 3d10 4s1 | 0.85% |
| electrons | 29 | 0.85% |
| electrons arrangement | 2, 8, 18, 1 | 0.85% |
| main isotopes | 63Cu (69.1%) and 65Cu (30.8%) | 0.85% |
| melting point | 1357.7 K or 1084.6 °C or 1984.3 °F | 0.85% |
| neutrons | 35 | 1.69% |
| position | Group: 11, Period: 4, Block: d | 0.85% |
| rarity | BROWNIAN-MANIACS | 33.33% |
| state | Solid | 72.88% |
| symbol | Cu | 0.85% |
| who discovered | Carl Wilhelm Scheele in 1771 | 1.69% |
Total Rarity Score: 1875.88
Rarity: #71/354