Antimony
| Basic Information | Crystal Structure | Isotope | Facts | Related Links |
| Symbol: | Sb |
| Atomic Number: | 51 |
| Atomic weight: | 121.75u |
| Melting Point: | 904K |
| Boiling Point: | 1860K |
| Number of Protons/Electrons: | 51 |
| Number of Neutrons: | 71 |
| Classification: | Metalloid |
| Crystal Structure: | Rhombohedral |
| Density at 293 K: | 6.68g/mL |
| Color: | Bluish |
| Bonding radius: | 1.4A |
| Atomic radius: | 1.53A |
| Ionization Potential: | 8.641V |
| Electronegativity: | 2.05 |
| Heat of vaporization: | 77.14kJ/mol |
| Heat of fusion: | 19.87kJ/mol |
| Specific heat: | 0.21J/gK |
| Electron configuration: | [Kr]4d105s25p3 |
Crystal Structure
| Isotope | Half Life |
| Sb117 | 2.8 hours |
| Sb119 | 38.1 hours |
| Sb120 | 15.89 minutes |
| Sb120 | Stable |
| Sb121 | 2.7 days |
| Sb122 | Stable |
| Sb123 | 60.2 days |
| Sb124 | 2.75 years |
| Sb125 | 12.4 days |
| Sb126m | 19.0 minutes |
| Sb127 | 3.84 days |
| Sb129 | 4.4 hours |
| Date of Discovery: | Ancients |
| Discoverer: | |
| Uses: | Hardens lead, plastics, chemicals |
| Obtained From: | Stibnite, valentinite |