CBSE Class 11 Chemistry Chapter 2 - Structure of Atoms

Brief Information: This Chemistry ncert class 11 chapter 2 will be fundamental for atoms and thus students will get to know about the discovery of proton, electron, and neutrons. They will also study what isotopes, isobars, atomic numbers, etc is. This chapter also describes details of Thomson’s model along with its limitations. Besides this, it talks about Bohr’s model and Rutherford’s model and its limitations. There is some detail being thrown into the dual nature of light and matter, Heisenberg’s uncertainty principle, de Broglie’s principle, the shapes of s, d, and p orbitals, quantum numbers, etc. There are also topics like Hund’s rule and Pauli’s exclusion principle which are also discussed in this chapter.

Topics Covered

• Bohr’s model and its limitations
• concept of shells and subshells
• dual nature of matter and light
• de Broglie’s relationship
• Heisenberg uncertainty principle
• concept of orbitals
• quantum numbers
• Shapes of s, p and d orbitals
• rules for filling electrons in orbitals – Aufbau principle
• Pauli’s exclusion principle
• Hund’s rule
• electronic configuration of atoms
• stability of half-filled and completely filled orbitals.
  

Watch the 5 videos given below for understanding NCERT CBSE Class 11 Chemistry Chapter 2 – Structure of Atoms explanation in Hindi (for easy and better understanding).