PERIODIC ELEMENT
Sb (Antimony)

 



Atomic number : 51
Atomic mass : 121.75 g.mol-1
Electronegativity according to Pauling : 1.9
Density : 6.684 g.cm-3
Melting point : 631 °C
Boiling point : 1380 °C
Vanderwaals radius : 0.159 nm
Ionic radius : 0.245 (-3) nm ; 0.062 nm (+5) ; 0.076 nm (+3)
Isotopes : 12
Electronic shell : [Kr] 4d105s25p3
Energy of first ionisation : 834 kJ.mol-1
Energy of second ionisation : 1595 KJ.mol-1
Energy of third ionisation : 2443 KJ.mol-1
Standard potential : 0.21 V (Sb3+ / Sb)
Discovered by : The ancients
 
Atomic Structure Uses (hardens lead, plastics, chemicals)