Your are doing a great job sonali,all the best for your upcoming challenges. May your work be appreciated more and more every single day. [img=recommend]

Excellently done by the author. I like the way it has been explained. Keep up the good work Madam. Hope to see many more work by you further.

This topic of Atom and Molecules would be of great help for people who wants their concepts to be clear. Very well written by the author. Everything has been explained so clearly and easy for the readers.