Master #atomicstructure Lecture 12: Electron Filling Rules: Aufbau, Pauli, Hund's Rule & Exceptions
Unlock the secrets of Electronic Configuration! 🔓 This FREE, power-packed video is a must-watch for all JEE Main, JEE Advanced, and NEET aspirants struggling with Atomic Structure. We cover all the fundamental electron filling rules and principles to help you ace those tough configuration and stability questions! Master the concepts that dictate how electrons are arranged in an atom, from Hydrogen (H) to Krypton (Kr)! ________________________________________ 🧠 What You Will Learn in This Video: 1. The Three Essential Electron Filling Rules: • Aufbau's Rule (n+l Rule): Learn the systematic Energy order sequence for multielectron atoms that determines the orbital filling. • Pauli's Exclusion Principle: Understand the strict rule governing quantum number restrictions and why an orbital can hold a maximum of two electrons. • Hund's Rule of Maximum Multiplicity: Discover how to fill Degenerate Orbitals correctly to achieve maximum stability by maximizing the number of unpaired electrons (same spin). 2. Energy Levels and Orbital Capacity: • Clear explanation of Energy order for unielectronic species (H atom) vs. multielectron species. • Recap of Orbital Capacity Numbers: s=2, p=6, d=10, f=14. 3. Exceptions and Stability Concepts (Crucial for JEE/NEET!): • Exceptions to Aufbau's Rule: Deep dive into the classic exceptions: Chromium (Cr) and Copper (Cu). Learn the Expected vs. Observed configuration. • Enhanced Stability: Why are Half-filled and fully-filled configurations exceptionally stable? • Exchange Energy: The detailed concept of Exchange Energy and how electron position exchange leads to greater stability and symmetrical configurations. ________________________________________ 📝 Practice & Examples Covered: • Systematic writing of Electronic configurations of elements H through Kr. • Identifying the stability of various configurations based on the rules. Hit 'Like' 👍 if you're ready to master Electronic Configuration! #jeechemistry #neetchemistry #electronicconfiguration #aufbauprinciple #hundsrule #PauliPrinciple #atomicstructure #jee2026 #neet2026 #chemistryclass11lectures #neet2027 #jee2027 Link for Notes Pdf: https://shorturl.at/HgZFj Useful Links & Playlists Full Atomic Structure Playlist: • Master Atomic Structure Subscribe for more videos: / @jeetxperts Connect with me! Instagram: / jeet.xperts Website: www.jeetxperts.com Andriod App: https://play.google.com/store/apps/de... About This Channel Welcome to your ultimate guide for JEE and NEET Chemistry! This channel is dedicated to helping you master every concept in Class 11 and Class 12 Chemistry for your medical and engineering entrance exams. Whether you're struggling with Physical Chemistry, Organic Chemistry, or Inorganic Chemistry, we've got you covered with simplified explanations, problem-solving strategies, and previous year question breakdowns. Our goal is to make your IIT JEE and NEET UG preparation simple, effective, and fun!