| Content-Type | image/png |
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| Content-Length | 6.18 kB |
| Size | 512x512 |
#36 Krypton - rarity ZERO-KELVIN
| 1st ionization energy | 14.00 eV | 0.85% |
|---|---|---|
| appearance | Colorless gas | 7.63% |
| atomic mass | 83.798 u | 0.85% |
| atomic number | 36 | 0.85% |
| atomic radius | 202 picometers (van der Waals radius) | 4.24% |
| boiling point | 119.9 K or -153.4 °C or -244.1 °F | 0.85% |
| cas number | 7439-90-9 | 0.85% |
| cas number of (cl2) | - | 99.15% |
| category | Noble gases | 5.08% |
| crystal structure | FCC (Face centered cubic) | 11.02% |
| density | 3.75 g/L | 0.85% |
| electronegativity | 3.00 (Pauling scale) | 0.85% |
| electronic configuration | [Ar] 3d10 4s2 4p6 | 0.85% |
| electrons | 36 | 0.85% |
| electrons arrangement | 2, 8, 18, 8 | 0.85% |
| main isotopes | 84Kr | 0.85% |
| melting point | 115.7 K or -157.3 °C or -251.2 °F | 0.85% |
| neutrons | 48 | 1.69% |
| position | Group: 18, Period: 4, Block: p | 0.85% |
| rarity | ZERO-KELVIN | 33.33% |
| state | Gas | 9.32% |
| sublimation point | - | 99.15% |
| symbol | Kr | 0.85% |
| valence electrons | 8 | 4.24% |
| who discovered | William Ramsay and Morris Travers (in 1898) | 0.85% |
Total Rarity Score: 1933.8
Rarity: #61/354