Tantalum
| Basic Information | Crystal Structure | Isotope | Facts | Related Links |
| Symbol: | Ta |
| Atomic Number: | 73 |
| Atomic weight: | 180.9479u |
| Melting Point: | 3287K |
| Boiling Point: | 5731K |
| Number of Protons/Electrons: | 73 |
| Number of Neutrons: | 108 |
| Classification: | Transition Metal |
| Crystal Structure: | Body Centered Cubic |
| Density at 293 K: | 16.6g/mL |
| Color: | Gray |
| Bonding radius: | 1.34A |
| Atomic radius: | 2.09A |
| Ionization Potential: | 7.89V |
| Electronegativity: | 1.5 |
| Heat of vaporization: | 743kJ/mol |
| Heat of fusion: | 31.6kJ/mol |
| Specific heat: | 0.14J/gK |
| Electron configuration: | [Xe]4f145d36s2 |
Crystal Structure
| Isotope | Half Life |
| Ta179 | 1.8 years |
| Ta180 | 1.2E15 years |
| Ta181 | Stable |
| Ta182 | 114.43 days |
| Date of Discovery: | 1802 |
| Discoverer: | Anders Ekeberg |
| Uses: | Capacitors, camera lenses |
| Obtained From: | Tantalite |