Technetium
| Basic Information | Crystal Structure | Isotope | Facts | Related Links |
| Symbol: | Tc |
| Atomic Number: | 43 |
| Atomic weight: | 98u |
| Melting Point: | 2473K |
| Boiling Point: | 4538K |
| Number of Protons/Electrons: | 43 |
| Number of Neutrons: | 55 |
| Classification: | Transition Metal |
| Crystal Structure: | Hexagonal |
| Density at 293 K: | 11.5g/mL |
| Color: | |
| Bonding radius: | 1.27A |
| Atomic radius: | 1.95A |
| Ionization Potential: | 7.28V |
| Electronegativity: | 1.9 |
| Heat of vaporization: | 660kJ/mol |
| Heat of fusion: | 24kJ/mol |
| Specific heat: | 0.21J/gK |
| Electron configuration: | [Kr]4d55s2 |
Crystal Structure
| Isotope | Half Life |
| Tc95 | 20 hours |
| Tc95m | 61days |
| Tc96 | 4.28 days |
| Tc96m | 51.5 minutes |
| Tc97 | 2600000 years |
| Tc97m | 90days |
| Tc98 | 4200000years |
| Tc99 | 2.13E7 years |
| Tc99m | 6.0 hours |
| Tc100 | 14.2 minutes |
| Date of Discovery: | 1937 |
| Discoverer: | Carlo Perrier |
| Uses: | Tc-99m is used for radioactive tracing in medicine |
| Obtained From: | Man-made |