Friday, October 12, 2012

IONIC BOND :




                          A bond between the two ions are formed from the transfer of one electron to another. Which is generally form between a metal and non-metal. For example NaCl. ( Sodium chloride ). This is often described as one atom giving electron to the other. In the case of NaCl , Sodium would give electron to chlorine.

                           Ionic compounds dissociate into their ions when they dissolve in water. It will react a good conductors of electricity in aqueous solution.

PROPERTIES OF IONIC COMPOUND:

STATE :
          Due to strong force of attraction, all ionic compounds are exist in solid state. At room temperature forming a crystal lattice structure.

THERMAL STABILITY :
            Ionic compounds have high melting point ( m.p) and boiling point (b.p )

CONDUCTANCE :
             They are strong electrolytes. In solid state they do not conduct electricity. In molten state and in aqueous solution they conduct electricity.

SOLUBILITY :
             Generally ionic compounds are soluble in water and  insoluble in organic compounds.

HARDNESS :
              They are very hard.

REACTIVITY :         
               Ionic compounds are very reactive .

THERMAL CONDUCTIVITY :
               Ionic compounds are low thermal conductivity.
  • Most of the ionic compounds are brittle and break under stress. Because ions produced by electron transfer attract each other by electrostatic attraction and this creates an ionic bond.

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