| Element | Beryllium | Symbol | Be |
| Atomic Number | 4 | Molar Mass | 9.01 gmol-1 |
| Electron Configuration | [He}2s2 | Normal State | solid metal |
| Density @STP | 1.85 g cm-3 | Melting Point | 1287oC |
| Boiling Point | 2471oC | Stable Isotopes | 9Be, |
| Atomic Radius | 112 pm | Ionic Radius | 27 (2+) pm |
| Electronegativity (Pauling) | 1.57 | Ionization Energy (1st) | 899 kJ mol-1 |
| Ionization Energy (2nd) | 1757 kJ mol-1 | Ionization Energy (3rd) | 14848 kJ mol-1 |
| Molar Heat Capacity | 16.4 J K-1mol-1 | Standard Molar Entropy | 9.5 J K-1mol-1 |
| Enthalpy of Fusion | 9.8 kJ mol-1 | Enthalpy of Vapourization | 308.8 kJ mol-1 |