CBSE Class 9 Chemistry Structure of the Atom
- what is sub atomic particula
- compare the properties of electrons,Protons and neutrons.
- If all the KLMN shells of an atom are filled then the total number of electrons present in the atrom is?
- Are atoms divisible or indivisible?
- WHO IS CHADWICK?
- why thomson's model of atom was rejected?
- discovery of neutron
- Write an experiment to show that cathode ray travell in a straight line
- what are protons made of ?
- List important feature of Dalton atomic theory