The course explains everything about the atom and its structure. The course explains the discovery of subatomic particles and their organization within an atom. Later, we discuss that how their number and arrangement affect the properties and characteristics of an atom. After going through this course, one will be able to get depth knowledge of this Atom Structure unit of Chemistry and will also be able to score good marks in the examination. Tags: Class 9 NCERT, Structure of Atom, Electrons, Protons, Neutrons, Class 9 CBSE Students, Class 9 ICSE Students.