Antimony
Chemical, physical and material properties and data of the chemical element Antimony.
General Information about Antimony
Regular nameAntimonyChemical symbolSbOther namesSystematic nameHistorical namesName meaning, originDiscovery (year)OccurencePosition in the PSEGroup membership
Atomar Properties of Antimony
Atomic number Z51 = number of protonsStandard Atomic Weight121.760 (1)
Electron configuration of Antimony
| 1s | 2s | 2p | 3s | 3p | 3d | 4s | 4p | 4d | 4f | 5s | 5p | 5d | 5f | 6s | 6p | 6d | 6f | 7s | 7p |
|---|
| 2 | 2 | 6 | 2 | 6 | 10 | 2 | 6 | 10 | | 2 | 3 | | | | | | | | |
Abbreviated form: [Kr] 4d10 5s2 5p3 .
Ionization Energies of Antimony
The following table lists the ionization energies IE (ionization potentials); the IE is the energy required in electron volts (eV) per atom to separate a given electron from an Antimony atom.
| IE1 | IE2 | IE3 | IE4 | IE5 | IE6 |
|---|
| 8.60839 | 16.63 | 25.3 | 44.2 | 56 | 108 |
Isotopic Data of Antimony
An overview of the nuclides as well as the isotopic data and properties are listed on the following page: Antimony isotopes.
Chemistry of Antimony
Oxidation states+5. +3Electronegativity1.9 (Pauling original)
2.05 (Pauling)
1.984 (Allen)
2.0 (Mulliken)
2.19 (Sanderson)
1.82 (Allred-Rochow)
5.0203 eV (Gosh Gupta)
4.85 eV (Pearson)Electron affinity1.047 401(19) eV
101.059(2) kJ mol-1
Standard Electrode Potential
| E0 (V) | Symbol | Nox | Name Ox.
Name Red. | Ox.
Red. | e- |
|---|
| 0.2 | Sb | + III
0 | Antimonyl cation
Antimony | SbO+ + 2 H+
⇄ Sb (s) + H2O | + 3 e- |
Material and Physical Properties
Melting point630.63 °CEnthalpy of fusion (molar)19.79 kJ mol-1Enthalpy of fusion (specific)163 kJ mol-1Boiling point1635 °CEnthalpy of vaporization67.91 kJ mol-1Density6.697 g cm-3
External Data, Identifiers
CAS registry number7440-36-0InChI =1S/SbInChIKeyWATWJIUSRGPENY-UHFFFAOYSA-NPubChem ID5354495
Last update: 2022-12-12
Perma link: https://www.chemlin.org/chemical-elements/antimony.php
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