Praseodymium
Electron Configuration
|
General Properties
| Atomic Symbol | Pr |
| Atomic Weight | 140.9077 g/mol |
| Element Number | 59 |
| Standard State | Solid |
| Standard Type | Strongly Basic |
| Date of Discovery | 1885 |
| Discoverer | Auer von Welsbach |
Physical Properties
| Oxidation States | 3,4 |
| Boiling Point | 3785 K |
| Melting Point | 1204 K |
| Density | 6.77 g/cm³ |
| Electron Configuration | [Xe]4f3,6s2 |
| Acid/Base Properties | Basic |
| Crystal Structure | Hexagonal |
| Electronegativity | 1.13 |
| Heat of Vaporization | 332.63 kJ/mol |
| Heat of Fusion | 10.04 kJ/mol |
| Electrical Conductivity | 1.5 10^6omg-¹cm-¹ |
| Thermal Conductivity | 12.5 Wm-¹K-¹ (at 300 K) |
| Specific Heat Capacity | 0.193 Jg-¹K-¹ (at 300 K) |
| First Ionization Potential | 5.42 |
| Atomic Volume | 20.8 cm³/mol |
| Atomic Radius | 1.82 Å |
| Covalent Radius | 1.65 Å |
| Synthetic | No |