Changes

<blockquote>1. To know about the atoms  [http://www2.estrellamountain.edu/faculty/farabee/biobk/biobookchem1.html visit this webiste]</blockquote>2. Structure of atom - http://www.chem4kids.com/files/atom_structure

<blockquote>1. To know about the atoms  [http://www2.estrellamountain.edu/faculty/farabee/biobk/biobookchem1.html visit this webiste]</blockquote>2. Structure of atom - http://www.chem4kids.com/files/atom_structure

3. Atoms and Molecules - [http://www.learnhive.net/learn/icse-grade-8/chemistry/structure-of-atoms click here.]

3. Atoms and Molecules - [http://www.learnhive.net/learn/icse-grade-8/chemistry/structure-of-atoms click here.]

== Reference Books ==

== Reference Books ==