Beryllium
| Basic Information | Crystal Structure | Isotope | Facts | Related Links |
| Symbol: | Be |
| Atomic Number: | 4 |
| Atomic weight: | 9.01218 u |
| Melting Point: | 1560K |
| Boiling Point: | 2745K |
| Number of Protons/Electrons: | 4 |
| Number of Neutrons: | 5 |
| Classification: | Alkali Earth Metal |
| Crystal Structure: | Hexagonal |
| Density | 1.85g/mL |
| Color: | gray |
| Bonding radius: | 0.9A |
| Atomic radius: | 1.4A |
| Ionization Potential: | 9.322V |
| Electronegativity: | 1.57 |
| Heat of vaporization: | 292.4 kJ/mol |
| Heat of fusion: | 12.2 kJ/mol |
| Specific heat: | 1.82 J/gK |
| Electron configuration: | 1s22s2 |
Crystal Structure
| Isotope | Half Life |
| Be7 | 53.3 days |
| Be9 | Stable |
| Be10 | 2600000 years |
| Date of Discovery: | 1798 |
| Discoverer: | Fredrich Wohler |
| Uses: | Spacecraft, missiles, aircraft |
| Obtained From: | Beryl, Chrysoberyl |