Atomic Structure Notes for JEE

Subtopics in Atomic Structure

• Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom
• Bohr model of a hydrogen atom: its postulates, derivation of the relations for the energy of the electron and radii of the different orbits, limitations of Bohr's model
• Dual nature of matter, de Broglie's relationship, Heisenberg uncertainty principle
• Elementary ideas of quantum mechanics, the quantum mechanical model of the atom and its important features
• Concept of atomic orbitals as one-electron wave functions, variation of Psi and Psi^2 with r for 1s and 2s orbitals
• Various quantum numbers (principal, angular momentum and magnetic quantum numbers) and their significance
• Shapes of s, p and d orbitals, electron spin and spin quantum number
• Rules for filling electrons in orbitals: Aufbau principle, Pauli's exclusion principle and Hund's rule
• Electronic configuration of elements and extra stability of half-filled and completely filled orbitals