Atomic Radii
Atomic Radius
Bohr Radius
Covalent Radius
Van der Waals
| Hydrogen | |
| Electron Configuration | 1 |
| Electron Configuration | 1s1 |
| Electronegativity | 2.20 |
| Enthalpy of Fusion | 0.12 kJ mol-1 |
| Enthalpy of Vaporisation | 0.46 kJ mol-1 |
| Heat Capacity | (H2) 28.836 J mol-1 K-1 |
| Thermal Conductivity | 180.5 W m-1 K-1 |
| Thermal Expansion | ? μm m-1 K-1 |
| Magnetic ordering | No data |
| Speed of sound | 1310 m s-1 |
| Atomic Radii |
|
| Atomic Radius
|
21 pm |
| Bohr Radius
|
53 pm |
| Covalent Radius
|
37 pm |
| Van der Waals
|
120 pm |
| Oxidation States |
|
| Main
|
H+1 |
| Other
|
H0, H-1 |
Ionisation Energies (kJ mol-1)  |
|
| M - M+ |
1312 |
| Covalent Bonds (kJ mol-1) |
|
| H-H
|
454 |
| H-F
|
566 |
| H-Cl
|
431 |
| H-Br
|
366 |
| H-I
|
299 |