This article presents the CBSE Class 9 Science notes on chapter 4 ‘Structure ... Atom as a whole is electrically neutral because the negative and positive charges are equal in magnitude. This ...

Get NCERT Class 9 Science Chapter 4 Structure of the Atom in PDF from ... → Rutherford’s model of the atom proposed that a very tiny nucleus is present inside the atom and electrons revolve ...

Related: There's a giant mystery hiding inside every atom in the universe The Bohr model: Journey to find structure of atoms British physicist Joseph John Thomson made the first major breakthrough ...