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#10 Neon - rarity BROWNIAN-MANIACS
| 1st ionization energy | 21.565 eV | 0.85% |
|---|---|---|
| appearance | Colorless gas | 7.63% |
| atomic mass | 20.180 u | 0.85% |
| atomic number | 10 | 0.85% |
| atomic radius | 154 picometers (van der Waals radius) | 0.85% |
| boiling point | 27.104 K or -246.04 °C or -410.88 °F | 0.85% |
| cas number | 7440-01-9 | 0.85% |
| cas number of (cl2) | - | 99.15% |
| category | Noble gases | 5.08% |
| crystal structure | FCC (Face-centered cubic) | 1.69% |
| density | 0.9 g/L | 0.85% |
| electronegativity | - | 21.19% |
| electronic configuration | [He] 2s2 2p6 | 0.85% |
| electrons | 10 | 0.85% |
| electrons arrangement | 2, 8 | 0.85% |
| main isotopes | 20Ne | 0.85% |
| melting point | 24.56 K or -248.59 °C or -415.46 °F | 0.85% |
| neutrons | 10 | 1.69% |
| position | Group: 18, Period: 2, Block: p | 0.85% |
| rarity | BROWNIAN-MANIACS | 33.33% |
| state | Gas | 9.32% |
| sublimation point | - | 99.15% |
| symbol | Ne | 0.85% |
| valence electrons | 8 | 4.24% |
| who discovered | William Ramsey and Morris Travers (in 1898) | 1.69% |
Total Rarity Score: 1905.84
Rarity: #70/354