Characteristics of the element
| Symbol: Be |
| Name: Beryllium |
| Latin name: Berylium |
| Atomic number: 4 |
| Atomic mass: 9,012182 |
| Melting point: 1287 (°C) |
| Boiling point: 2970 (°C) |
| Density 1,850 (g/cm 3 ) |
| Electronegativity: 1,5 |
| Oxidation number: II |
| Number of neutrons: 5 |
| Crystal structure: Hexagonal |
| Chemical serie: Alkaline earth metals |
| Color: gray |
| Electron configuration: 2-2 |
| Year of discovery:: 1798 |
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Update: 26.11.25
Update: 26.11.25