ANTIMONY

[General | States | Energies | Oxidation & Electrons]
[Appearance & Characteristics | Reactions | Other Forms]
[Radius | Conductivity | Abundance | History]

General

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

Back to the top

States

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

Back to the top

Energies

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

Back to the top

Oxidation & 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

Back to the top

Appearance & Characteristics

Structure rhombohedral Color bluish-white
Uses Pb alloy(battery), dyeing Toxicity  
Hardness 3.15 mohs Characteristics brittle; 5 forms

Back to the top

Reactions

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

Back to the top

Other Forms

Number of isotopes 2 Hydride(s) SbH3
Oxide(s) Sb2O3 Sb2O4 Sb2O5 Chloride(s) SbCl3 SbCl5

Back to the top

Radius

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

Back to the top

Conductivity

Thermal conductivity 24.4 J/m-sec-deg Electrical conductivity 25.641 1/mohm-cm
Polarizability 6.6 A^3

Back to the top

HOME

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

Back to the top

History:

Back to the top

Hosted by www.Geocities.ws

1