| Content-Type | image/png |
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| Content-Length | 8.48 kB |
| Size | 512x512 |
#86 Radon - rarity ZERO-KELVIN
| 1st ionization energy | 10.745 eV | 0.85% |
|---|---|---|
| appearance | Colorless gas | 7.63% |
| atomic mass | 222 u | 0.85% |
| atomic number | 86 | 0.85% |
| atomic radius | 220 picometers (van der Waals radius) | 0.85% |
| boiling point | 211.5 K or -61.7 °C or -79.1 °F | 0.85% |
| cas number | 10043-92-2 | 0.85% |
| cas number of (cl2) | - | 99.15% |
| category | Noble gases | 5.08% |
| crystal structure | FCC (face centered cubic) | 11.02% |
| density | 9.73 g/L | 0.85% |
| electronegativity | - | 21.19% |
| electronic configuration | [Xe] 4f14 5d10 6s2 6p6 | 0.85% |
| electrons | 86 | 0.85% |
| electrons arrangement | 2, 8, 18, 32, 18, 8 | 0.85% |
| main isotopes | 222Rn | 0.85% |
| melting point | 202 K or -71 °C or -96 °F | 0.85% |
| neutrons | 136 | 1.69% |
| position | Group: 18, Period: 6, Block: p | 0.85% |
| rarity | ZERO-KELVIN | 33.33% |
| state | Gas | 9.32% |
| sublimation point | - | 99.15% |
| symbol | Rn | 0.85% |
| valence electrons | 8 | 4.24% |
| who discovered | Ernest Rutherford and Robert Owens (in 1899) | 0.85% |
Total Rarity Score: 1914.92
Rarity: #67/354