Calcium
Electron Configuration
|
General Properties
| Atomic Symbol | Ca |
| Atomic Weight | 40.078 g/mol |
| Element Number | 20 |
| Standard State | Solid |
| Standard Type | Strongly Basic |
| Date of Discovery | 1808 |
| Discoverer | Davy |
Physical Properties
| Oxidation States | 2 |
| Boiling Point | 1757 K |
| Melting Point | 1112 K |
| Density | 1.55 g/cm³ |
| Electron Configuration | [Ar]4s2 |
| Acid/Base Properties | Basic |
| Crystal Structure | Cubic, face centered |
| Electronegativity | 1.00 |
| Heat of Vaporization | 154.67 kJ/mol |
| Heat of Fusion | 8.53 kJ/mol |
| Electrical Conductivity | 31.3 10^6omg-¹cm-¹ |
| Thermal Conductivity | 200 Wm-¹K-¹ (at 300 K) |
| Specific Heat Capacity | 0.647 Jg-¹K-¹ (at 300 K) |
| First Ionization Potential | 6.113 |
| Atomic Volume | 29.90 cm³/mol |
| Atomic Radius | 1.97 Å |
| Covalent Radius | 1.74 Å |
| Synthetic | No |