| Atomic number |
|
1 |
| Atomic weight | 1.007947 amu |
| Density |
0.00008988 g/cm3 (STP) |
| Melting | -258.975 °C |
| Boiling | -252.9 °C |
| Covalent radius | 0.37 Å |
| Van der Waals radius | 1.20 Å |
| Ionic radius | 0.012 Å |
| First ionization potential | 13.598 eV = 109674 cm-1 = 1312.0 kJ/mol
|
| Electron affinity | -0.757 eV = -6102 cm-1 = -73.0 kJ/mol |
| Electronic configuration | 1s1 |
| Stable isotopes | 1H: 99.985%, 2H: 0.015% |
|
Wikipedia article about about Hydrogen |
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