Chromium
Electron Configuration
|
General Properties
| Atomic Symbol | Cr |
| Atomic Weight | 51.996 g/mol |
| Element Number | 24 |
| Standard State | Solid |
| Standard Type | Strongly Basic |
| Date of Discovery | 1797 |
| Discoverer | Vauquelin |
Physical Properties
| Oxidation States | 3, 6,2 |
| Boiling Point | 2945 K |
| Melting Point | 2130 K |
| Density | 7.19 g/cm³ |
| Electron Configuration | [Ar]3d5,4s1 |
| Acid/Base Properties | Acidic |
| Crystal Structure | Cubic, body centered |
| Electronegativity | 1.66 |
| Heat of Vaporization | 339.5 kJ/mol |
| Heat of Fusion | 20 kJ/mol |
| Electrical Conductivity | 7.9 10^6omg-¹cm-¹ |
| Thermal Conductivity | 93.7 Wm-¹K-¹ (at 300 K) |
| Specific Heat Capacity | 0.449 Jg-¹K-¹ (at 300 K) |
| First Ionization Potential | 6.766 |
| Atomic Volume | 7.23 cm³/mol |
| Atomic Radius | 1.30 Å |
| Covalent Radius | 1.18 Å |
| Synthetic | No |