 |
| General |
| Name | Antimony |
| Symbol | Sb |
| Number | 51 |
| Group Number | 15 |
| Group | Metal, Nitrogen group |
| Block | p |
| Density | 6.684 g/cm3 |
| Atomic Weight | 121.75 g/mol |
| Atomic Volume | 18.23 cm3/mol |
| Discover | 1600 |
|
| States |
| State | Solid |
| Melting Point | 903.78 K |
| Boiling Point | 1860 K |
| Triple Point | Nil |
| Critical Point | Nil |
| Heat of Fusion | 19.79 kJ/mol |
| Heat of Vaporization | 193.43 kJ/mol |
|
| Energies |
| First Ionization Energy | 833.7 kJ/mole |
| Second Ionization Energy | 1594.9 kJ/mole |
| Third Ionization Energy | 2441.1 kJ/mole |
| Electronegativity | 2.05 |
| Electron Affinity | 103 kJ/mole |
| Specific Heat | 0.21 J/gK |
| Heat Atomization | 262 kJ/mole atoms |
|
| Oxidation and Electrons |
| Shells | 2,8,18,18,5 |
| Electron Configuration | [Kr] 4d10 5s2 5p3 |
| Minimum Oxidation Number | -3 |
| Maximum Oxidation Number | 5 |
| Minimum Common Oxidation Number | 0 |
| Maximum Common Oxidation Number | 5 |
|
| Appearance and Characteristics |
| Crystal Structure | rhombohedral |
| Characteristics | brittle 5 forms |
| Color | bluish-white |
| Uses | Pb alloy(battery), dyeing |
| Hardness | 3.15 mohs |
| Toxicity | None |
|
| Reactions |
| Reaction with Air | mild, w/ht, =>Sb2Ox x=3-5 |
| Reaction with 6M HCl | None |
| Reaction with 15M HNO3 | mild, =>Sb2O5 |
| Reaction with 6M NaOH | None |
|
| Other Forms |
| Number of Isotopes | 2 |
| Hydride | SbH3 |
| Oxide | Sb2O3 Sb2O4 Sb2O5 |
| Chloride | SbCl3 SbCl5 |
|
| Radius |
| Atomic Radius | 140 pm |
| Ionic Radius (1+ ion) | Nil |
| Ionic Radius (1- ion) | Nil |
| Ionic Radius (2+ ion) | Nil |
| Ionic Radius (2- ion) | Nil |
| Ionic Radius (3+ ion) | 90 pm |
|
| Conductivity |
| Thermal Conductivity | 24.4 J/m-sec-deg |
| Electrical Conductivity | 25.641 1/mohm-cm |
| Polarizability | 6.6 A3 |
|
| Abundance |
| Source | Stibnite (sulfide) |
| Relation Abundance Solar System | -0.510 log |
| Abundance Earth's Crust | -0.7 log |
|
