Beryllium (Be)
Refractory Metals | Atomic Number: 4
Basic Properties
Be
4
9.0122 g/mol
| Element Category | Refractory Metals |
|---|---|
| Atomic Number | 4 |
| Atomic Weight | 9.0122 g/mol |
| Crystal Structure | Hexagonal close-packed (HCP) |
Crystal Structure Visualization
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Description
Beryllium is a lightweight metal with high thermal stability. It's used in aerospace and nuclear applications but is toxic.
| Density | 1.85 g/cm³ |
|---|
| Tensile Strength | N/A |
|---|---|
| Hardness | N/A |
| Melting Point | 1287°C |
|---|---|
| Boiling Point | 2470°C |
| Thermal Conductivity | 200 W/(m·K) |
| Electrical Conductivity | 2.5 × 10^7 S/m |
|---|
| Corrosion Resistance | Good |
|---|
Applications
Used in aerospace, X-ray windows, and precision instruments.
Production Methods
Extracted from beryl and bertrandite.
History
Discovered in 1798; its toxicity limits widespread use.