Do like, Comment, Share this video and Subscribe this Channel. Video Link: • Article: Evidence of Atom (Basic Concept) ... Topic: Evidence of Atom 1- Ordinary Microscope 2- Electron Microscope 3- Diameter of atom 4- Masses of Atom 5- Value of Atomic mass Unit 6- Atoms in full stop 7- Diagram of Graphite Thanks for Watching! Regards: Prof. Ali Rizwan