Structure of Atom - Detailed NCERT Notes for JEE, NEET and CBSE

Vijay Ishwar
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This article contains detailed notes of class 11 chemistry chapter 2 "Structure of Atom". 

Structure of Atom

This chapter can be divided into following segments: 

1. Dalton Atomic Theory
2. Discovery of Subatomic Particles
  i. Electron Discovery- Discharge tube experiment
  ii. Proton discovery- Discharge tube experiment
  iii. Neutron discovery- Alpha particles bombarding experiment

3. Thomson Model of Atom
4. Rutherford Model of the Atom
  i. Alpha particles scattering experiment
  ii. Postulates of the Rutherford's Model
  iii. Applications and Drawbacks
5. Dual Nature of Matter and radiation
  i. Properties of Electromagnetic waves
  ii. Wave Nature- Plank's quantum theory
  iii. Particle Nature- Black Body Radiation, Photoelectric Effect

6. Types of Atomic Spectra
  i. Emission and Absorption Spectra
  ii. Continuous, Line and Band Spectra
  iii. Line Spectrum of Hydrogen Atom
7. Bohr Atomic Model & its Applications
  i. Postulates of Bohr Model
  ii. Concepts of Atomic Orbits
  iii. Energy, Momentum & Velocity of Electron in Orbits
  iv. Explanation of Line Spectrum of Hydrogen
  v. Electron Excitation- Rydberg's Formula

8. Dual Nature of Electron
  i. De Broglie Hypothesis
  ii. Heisenberg's Uncertainty Principle

9. Quantum Mechanical Model
  i. Postulates of Quantum Model
  ii. Schrodinger Wave Equation
  iii. Electron Probability

10. Applications of Quantum Mechanical Model
  i. Shapes of Atomic Orbitals
  ii. Quantum Numbers

11. Electron filling in Atomic Orbitals
  i. Aufbau Principle
  ii. Pauli Exclusion Principle
  iii. Hund's Rule of Maximum Multiplicity
  iv. Stability of Half-filled and Fully-filled configurations

These are all that topics that we study in this chapter in the very order. Their topic wise exercise questions and JEE, NEET PYQs are given on their specific pages. 

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