IN SCIENCE THE ATOM PLAY VERY IMPORTANT ROLE.BEFORE DEEP GOING INSIDE THIS FIRSTLY WE SHOULD
KNOW WHAT ACTUALLY ATOM IS? THE ATOM IS FUNDAMENTAL PIECE OF MATTER AND MATTER IS THAT WHICH WE CAN TOUCH PHYSICALLY. EXCEPT THE ENRGY ALL THINGS ARE MADE UP OF ATOM. THE ATOM IS SMALLEST PARTICLE OF ELEMENT IT IS
