Atomic Radii
Atomic Radius
Bohr Radius
Covalent Radius
Van der Waals
| Beryllium | |
| Electron Configuration | 2,2 |
| Electron Configuration | 1s2 2s2 |
| Electronegativity | 1.57 |
| Enthalpy of Fusion | 9.80 kJ mol-1 |
| Enthalpy of Vaporisation | 308.8 kJ mol-1 |
| Heat Capacity | 16.443 J mol-1 K-1 |
| Thermal Conductivity | 200 W m-1 K-1 |
| Thermal Expansion | 11.3 μm m-1 K-1 |
| Magnetic ordering | Diamagnetic |
| Electrical resistivity | 35.6 Ω m |
| Speed of sound | 12870 m s-1 |
| Young's modulus | 287 GPa |
| Shear modulus | 12870 GPa |
| Bulk modulus | 130 GPa |
| Poisson ratio | 0.032 |
| Mohs hardness | 5.5 |
| Vickers hardness | 1670 MPa |
| Brinell hardness | 600 MPa |
| Atomic Radii |
|
| Atomic Radius
|
105 pm |
| Bohr Radius
|
112 pm |
| Covalent Radius
|
90 pm |
| Van der Waals
|
0 pm |
| Oxidation States |
|
| Main
|
Be+2 |
| Other
|
|
Ionisation Energies (kJ mol-1)  |
|
| M - M+ |
899.4 |
| M+ - M2+ |
1757.1 |
| M2+ - M3+ |
14848 |
| M3+ - M4+ |
21006 |
| Covalent Bonds (kJ mol-1) |
|
| Be-H
|
226 |
| Be-O
|
523 |
| Be-F
|
615 |
| Be-Cl
|
293 |