Prateek Gupta Sir helps you to revise Atomic Structure Class 11. He discusses how atoms are made up of protons, neutrons, and electrons. Elements are defined by the atomic number, the number of protons in the nucleus. The mass of an atom is determined by the total number of protons, neutrons and more in this revision video to help you with your Class 11 Chemistry for JEE or NEET preparation. You are advised to attempt questions after every lecture and attempt test after completion of chapters. This revision technique will help you solve JEE & NEET questions like a topper and get a better score. Prateek Gupta sir is eSaral Chemistry HoD. He has completed his B.Tech from IIT BOMBAY.