|
| Hydrogen |
| Atomic number | 1 |
|---|---|
| Atomic weight | 1.00794 |
| Discovery (year) | 1766 |
| Atomic radius (A) | 0.37 |
| Melting point (oC) | -259.14 |
| Boiling point (oC) | -252.87 |
| Density (g/cm3) | 0.0898 |
| Specific heat (cal/g oC) | 3.45 |
| Ionization potential (eV) | 13.598 |
| Electron Affinity (eV) | 0.7542 |