Atomic Structure -Chapter:2

atomic structure

atomic structure

Atomic Structure

Atomic Structure is study about the structure of atom. A series of discoveries beginning during the later part of 19th century have modified the Daltonian concept of the atom by demonstrating that an atom is a complex unit made up of similar discrete arts Atoms are not simple, compact bodies as supposed by Dalton but are complex systems composed of several fundamental particles of matter. The modern theories have proved that an atom is made up of about 100 particles out of which electrons, protons and neutrons are whole time existing and important particles
Knowledge of the structure of atom has made it possible for the facts of the chemistry to be systematized in such a way that the subject is easier to understand and remember. Chemical reactions that occur between atoms and the force that holds atoms together can be explained in terms of atomic structure It is essential to study the details of these sub atomic particles;

To read the Notes of   Atomic Structure Click the topic/question below:

Discharge Tube Experiments

Sub-atomic Particles

Discovery of Electron & Properties of Cathode Rays


  1. Whichever gas is used in the discharge tube, the nature of the cathode rays remains same. Why?
  2. What is the effect of electric and magnetic fields on cathode rays? Give its conclusion.
  3. How the Charge of an Electron is Measured?

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