This 'solar system' model of the atom is the way that most people think about atoms today. It is known as the Rutherford-Bohr model of atomic structure. The neutron was difficult to discover ...

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 ...

The term "atom" comes from the Greek word for indivisible, because it was once thought that atoms were the smallest things in the universe and could not be divided. We now know that atoms are made ...

This article presents the CBSE Class 9 Science notes on chapter 4 ‘Structure of the Atom’. These chapter notes are prepared by the subject experts and cover every important topic from the chapter.