| Property | Unit | Value |
| Name | - | Beryllium |
| Abbrevation | - | Be |
| Atomic Number | - | 4 |
| Group | - | AE |
| Heat of Fusion | Kcal/g-mole | 2.9 |
| Heat of Vaporization | Kcal/g-mole | 69.9 |
| Molecular Weight | g/g-mole | 9.01218 |
| Melting Point | �C | 1278 |
| Boiling Point | �C | 2469 |
| Refractive Index | - | N/A |
| Critical Temperature | �C | 8636.2 |
| Critical Pressure | atm | 386.874 |
| Critical Volume | cm�/g-mol | 311.22335 |
| Atomic Volume | cm�/g-mol | 4.85 |
| Atomic Radii (Bragg-Slater) | pm | N/A |
| Atomic Radii (Covalent) | pm | 125 |
| Atomic Radii (Van der Walls) | pm | 105 |
| Density | g/cm� | 1.84800 |
| Oxidation State | - | 2 |
| Electron Configuration | - | [He]2s2 |
| Electron Affinity (Theory) | KJ/g-mol | 240 |
| Electron Affinity (Exp) | KJ/g-mol | <0 |
| Electronegativity (Pauling) | - | 1.57 |
| Electronegativity (Sanderson) | - | 1.61 |
| Electronegativity (Allred_Rochow) | - | 1.47 |
| Surface Tension @BP | dyn/cm | N/A |
| NMR Frequencies of Nuclei | MHz | 14.053 |
| Discovery Date | - | 1797 |
| Electric Resistivity | mohm-cm | 4 |
| Linear Thermal Expansion Coefficient | 1E-6 cm/cm/�C | 11.5 |
| Neutron Capture Cross Section | barns | 0.0092 |
| Thermal Conductivity | W/m/K | 200 |
| Magnetic Susceptibility | 1e-9 m�/kg | -13 |
| Abundance, (Sun) | log(atoms/1E12 atoms H) | 1.2 |
| Abundance, (Meteorite) | log(atoms/atoms) | 1.4 |
| Abundance, (Earth) | log(pbbw) | 2 |
| Abundance, (Crust) | log(pbbw) | 3.2 |
| Abundance, (Ocean) | log(1E-12 mol/kg) | 1.3 |
| Abundance, (Body) | log(ppmw) | -1 |
| Electrical Conductivity | %IACS | 42.5 |
| Electrical Resistance | - | 4 |
| Photoelectric Work Function | eV | 3.67 |
| Hall's Coefficient | 1E-12* volt-cm/amp-Oe | 0.0024 |
| Electrochemical Equivalent | mg/coulomb | 0.04674 |
| Young's Modulus of Elasticity | 1E-6 kg/cm� | 3.04 |
| Shear Modulus | 1E-6 kg/cm� | 1.46 |
| Bulk Modulus | 1E-6 kg/cm� | 1.023 |
| Poisson's Ratio | - | 0.039 |
| Hardness | - | 105 |
| Hardness Unit | - | BRINELL (1000KG) |
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