Structure oF Atom Class 11 Notes
Fundamental Particles and Earlier Atomic Models Atoms are the building blocks of elements. They are the smallest parts of an element that chemically react. The first atomic theory proposed by John Dalton in 1808, regarded atom as the ultimate indivisible particle of matter. See more: https://www.extramarks.com/ncert-solutions/cbse-class-11/chemistry-structure-of-atom














