Cobalt
| Basic Information | Crystal Structure | Isotope | Facts | Related Links |
| Symbol: | Co |
| Atomic Number: | 27 |
| Atomic weight: | 58.9332u |
| Melting Point: | 1768K |
| Boiling Point: | 3201K |
| Number of Protons/Electrons: | 27 |
| Number of Neutrons: | 32 |
| Classification: | Transition Metal |
| Crystal Structure: | Hexagonal |
| Density at 293 K: | 8.9g/mL |
| Color: | Silver |
| Bonding radius: | 1.16A |
| Atomic radius: | 1.67A |
| Ionization Potential: | 7.86V |
| Electronegativity: | 1.88 |
| Heat of vaporization: | 376.5kJ/mol |
| Heat of fusion: | 16.19kJ/mol |
| Specific heat: | 0.42J/gK |
| Electron configuration: | [Ar]3d74s2 |
Crystal Structure
| Isotope | Half Life |
| Co56 | 77.3 days |
| Co56 | 271.8 days |
| Co56 | 70.9 days |
| Co56 | 9.1 hours |
| Co56 | Stable |
| Co56 | 5.3 years |
| Co56 | 10.5 minutes |
| Co56 | 1.7 hours |
| Date of Discovery: | 1737 |
| Discoverer: | George Brandt |
| Uses: | magnets, ceramics, special glasses |
| Obtained From: | arsenic, oxygen, sulfur, cobaltine |