Hydrogen
Electron Configuration
|
General Properties
| Atomic Symbol | H |
| Atomic Weight | 1.00794 g/mol |
| Element Number | 1 |
| Standard State | Gas |
| Standard Type | Neutral |
| Date of Discovery | 1766 |
| Discoverer | Cavendish |
Physical Properties
| Oxidation States | 1 |
| Boiling Point | 20.28 K |
| Melting Point | 13.81 K |
| Density | 0.0899 (Gas 273K g/l) |
| Electron Configuration | 1s1 |
| Acid/Base Properties | Amphoteric |
| Crystal Structure | Hexagonal |
| Electronegativity | 2.10 |
| Heat of Vaporization | 0.4581 kJ/mol |
| Heat of Fusion | 0.0585 kJ/mol |
| Electrical Conductivity | -- |
| Thermal Conductivity | 0.1815 Wm-¹K-¹ (at 300 K) |
| Specific Heat Capacity | 14.304 Jg-¹K-¹ (at 300 K) |
| First Ionization Potential | 13.598 |
| Atomic Volume | 14.10 cm³/mol |
| Atomic Radius | 2.08 Å |
| Covalent Radius | 0.32 Å |
| Synthetic | No |