Class 11 · Chemistry · Chapter 2
Structure of Atom
This chapter explores the internal structure of atoms — from the discovery of sub-atomic particles (electron, proton, neutron) through early atomic models (Thomson, Rutherford, Bohr) to the modern quantum mechanical model. Key topics include electromagnetic radiation, photoelectric effect, atomic spectra, de Broglie relation, Heisenberg uncertainty principle, quantum numbers, shapes of orbitals, and electronic configuration of atoms.
Topics in this chapter
- 1
Discovery of Sub-atomic Particles — Electron, Proton and Neutron
50 min read · Quiz included
- 2
Thomson and Rutherford Models, Atomic Number, Mass Number, Isotopes and Isobars
50 min read · Quiz included
- 3
Wave Nature of Electromagnetic Radiation and the Electromagnetic Spectrum
50 min read · Quiz included
- 4
Particle Nature of Radiation — Black-body Radiation, Planck's Quantum Theory and the Photoelectric Effect
50 min read · Quiz included
- 5
Atomic Spectra — Emission, Absorption and the Line Spectrum of Hydrogen
50 min read · Quiz included
- 6
Bohr's Model for the Hydrogen Atom and its Limitations
50 min read · Quiz included
- 7
Dual Behaviour of Matter and Heisenberg's Uncertainty Principle
50 min read · Quiz included
- 8
Quantum Mechanical Model of the Atom — Orbitals and the Four Quantum Numbers
50 min read · Quiz included
- 9
Shapes of Atomic Orbitals, Nodes, Orbital Energies and the (n + l) Rule
50 min read · Quiz included
- 10
Filling of Orbitals — Aufbau Principle, Pauli Exclusion, Hund's Rule and Electronic Configurations
50 min read · Quiz included
- 11
Solved Examples
90 min read · Quiz included
- 12
JEE Corner — Bohr Model Derivations, Spectral Lines, Photoelectric Graphs and Orbital Fine Print
60 min read · Quiz included
- 13
JEE Main Pattern Practice Questions
60 min read · Quiz included
- 14
NEET Corner — Structure of Atom the NEET Way
60 min read · Quiz included
- 15
NEET Pattern Practice Questions
60 min read · Quiz included
- 16
Summary and Quick Revision
15 min read · Quiz included