Showing posts with label class 11 chemistry notes. Show all posts
Showing posts with label class 11 chemistry notes. Show all posts

Tuesday, 22 January 2019

CHEMISTRY|CLASS11|CHEMICAL BONDING2

LEWIS SYMBOLS:



* In this type of formation of a molecule ,only the outermost shell electron are involved ,known as valence electrons.


* The inner shell are not involved in  a reaction. 

 

* G.N.LEWIS used dots to denote electrons.

 *  These dots surrounds symbols of atoms ,these symbols known as Lewis symbols

     for e.g. H . ,He. .



 

 

  IONIC BOND:

*  When a bond is formed by complete transferred of electrons from one atom to  another.so as to  complete their octet ,known as ionic or electrovalent bond.