CLASS 9 Chapter 3 Atoms and Molecules

 

Introduction

  • We all know that matter is anything that occupies space and has mass. The idea of divisibility of matter was considered long back in India, around 500 BC. An Indian philosopher Maharishi Kanad, postulated that if we go on dividing matter (padarth), we shall get smaller and smaller particles. Ultimately, a stage is reached when we come across the smallest particles beyond which cannot be divided further. He named these particles Parmanu or atoms.
CLASS 9 CHAPTER 3- ATOMS AND MOLECULES

https://www.youtube.com/watch?v=60GFSSRBjKE&list=PLAVY2tu_2M4jDkdNv8QJLwQi0eQVJ4Ryd&index=5