Rhenium
| Basic Information | Crystal Structure | Isotope | Facts | Related Links |
| Symbol: | Re |
| Atomic Number: | 75 |
| Atomic weight: | 186.207u |
| Melting Point: | 3453K |
| Boiling Point: | 5869K |
| Number of Protons/Electrons: | 75 |
| Number of Neutrons: | 111 |
| Classification: | Transition Metal |
| Crystal Structure: | Hexagonal |
| Density at 293 K: | 21g/mL |
| Color: | Silverish |
| Bonding radius: | 1.28A |
| Atomic radius: | 1.97A |
| Ionization Potential: | 7.88V |
| Electronegativity: | 1.9 |
| Heat of vaporization: | 7.15kJ/mol |
| Heat of fusion: | 33.2kJ/mol |
| Specific heat: | 0.13J/gK |
| Electron configuration: | [Xe]4f145d56s2 |
Crystal Structure
| Isotope | Half Life |
| Re182 | 2.67 days |
| Re182m | 12.7 hours |
| Re183 | 70.0 days |
| Re184 | 38.0 days |
| Re184m | 165.0 days |
| Re185 | Stable |
| Re186 | 3.77 days |
| Re187 | 4.1E10 years |
| Re188 | 16.94 hours |
| Date of Discovery: | 1925 |
| Discoverer: | Walter Noddack |
| Uses: | Filaments for mass spectrographs |
| Obtained From: | Gadolinite, molybdenite |