Calcium (Ca)
Refractory Metals | Atomic Number: 20
Basic Properties
Ca
20
40.078 g/mol
| Element Category | Refractory Metals |
|---|---|
| Atomic Number | 20 |
| Atomic Weight | 40.078 g/mol |
| Crystal Structure | Face-centered cubic (FCC) |
Crystal Structure Visualization
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Description
Calcium is a reactive, silvery metal essential for living organisms. It's used in steel making and various chemical processes.
| Density | 1.55 g/cm³ |
|---|
| Tensile Strength | N/A |
|---|---|
| Hardness | N/A |
| Melting Point | 842°C |
|---|---|
| Boiling Point | 1484°C |
| Thermal Conductivity | 200 W/(m·K) |
| Electrical Conductivity | 2.9 × 10^7 S/m |
|---|
| Corrosion Resistance | Fair |
|---|
Applications
Used in cement, steelmaking, and as a dietary supplement.
Production Methods
Extracted from limestone and other minerals.
History
Known since antiquity; major component of bones and shells.