[General | States | Energies | Oxidation & Electrons]
[Appearance & Characteristics | Reactions | Other Forms]
[Radius | Conductivity
| Abundance | History]
| Name | Antimony | Symbol | Sb | ||
|---|---|---|---|---|---|
| Atomic number | 51 | Atomic weight | 121.75 | ||
| Density @ 293 K | 6.684 g/cm3 | Atomic volume | 18.23 cm3/mol | ||
| Group | Metal, Nitrogen group | Discovered | 1600 | ||
| State (s, l, g) | s | ||||
|---|---|---|---|---|---|
| Melting point | 903.94 K | Boiling point | 1860 K | ||
| Heat of fusion | 19.870 kJ/mol | Heat of vaporization | 77.140 kJ/mol | ||
| 1st ionization energy | 833.7 kJ/mole | Electronegativity | 2.05 | ||
|---|---|---|---|---|---|
| 2nd ionization energy | 1594.9 kJ/mole | Electron affinity | 103 kJ/mole | ||
| 3rd ionization energy | 2441.1 kJ/mole | Specific heat | 0.21 J/gK | ||
| Heat atomization | 262 kJ/mole atoms | ||||
| 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 | ||
| Structure | rhombohedral | Color | bluish-white | ||
|---|---|---|---|---|---|
| Uses | Pb alloy(battery), dyeing | Toxicity | |||
| Hardness | 3.15 mohs | Characteristics | brittle; 5 forms | ||
| Reaction with air | mild, w/ht, =>Sb2Ox x=3-5 | Reaction with 6M HCl | none | ||
|---|---|---|---|---|---|
| Reaction with 6M HCl | none | Reaction with 15M HNO3 | mild, =>Sb2O5 | ||
| Reaction with 6M NaOH | none | ||||
| Number of isotopes | 2 | Hydride(s) | SbH3 | ||
|---|---|---|---|---|---|
| Oxide(s) | Sb2O3 Sb2O4 Sb2O5 | Chloride(s) | SbCl3 SbCl5 | ||
| Ionic radius (2- ion) | pm | Ionic radius (1- ion) | pm | ||
|---|---|---|---|---|---|
| Atomic radius | 140 pm | Ionic radius (1+ ion) | pm | ||
| Ionic radius (2+ ion) | pm | Ionic radius (3+ ion) | 90 pm | ||
| Thermal conductivity | 24.4 J/m-sec-deg | Electrical conductivity | 25.641 1/mohm-cm | ||
|---|---|---|---|---|---|
| Polarizability | 6.6 A^3 | ||||
| Source | Stibnite (sulfide) | Rel. abund. solar system | -0.510 log | ||
|---|---|---|---|---|---|
| Abundance earth's crust | -0.7 log | Cost, pure | 4.5 $/100g | ||
| Cost, bulk | 0.44 $/100g | ||||