COVALENT BOND
 
 
 
COVALENT BOND
 
Chemical bond formed between two atoms by the mutual
sharing of electrons is known as Covalent bond.
  In covalent bond formation each atom provides equal number of electrons for sharing but no transfer of   electrons takes place. Each electron pair is attracted by both the nucleus.
REPRESENTATION
 
  Covalent bond between two atoms is represented by a short line ()

  For latest information , free computer courses and high impact notes visit : www.citycollegiate.com
COVALENT BOND BETWEEN
H-ATOM AND Cl-ATOM
 
   Consider the example of HCl molecule.
   H atom has only one electron in its valance shell.
   It requires one electron to complete its duplet or achieve inert gas configuration.
   Electronic configuration of Cl is K = 2 , L = 8 and M = 7.
   Cl atom requires 1 electron to complete its valence shell or octate.
   Due to small difference between the values of E.N electron transfer from H or Cl is not possible.
   H and Cl share one electron.
   In this way without any transfer of electron both H & Cl complete their outer shell and a stable HCl        molecule is formed.
  For latest information , free computer courses and high impact notes visit : www.citycollegiate.com
|NEXT PAGE|PHOTOSHOP|FLASH|SWISH|FLAX|INTERNET|PHYSICS|CHEMISTRY|HOME|