Quantum Model and Periodic Classification

📋 Course Outline

1. Atomic Structure and Elementary Particles
2. Electron Discovery and Classical Model
3. Electromagnetic Radiation and Spectra
4. Quantized Energy Levels
5. Schrödinger Equation and Orbitals
6. Quantum Numbers and Orbital Shapes
7. Electronic Configuration Rules
8. Valence Electrons and Ions
9. Periodic Table Organization
10. Periodic Properties and Electronegativity

📅 Key Dates

1. 1869Mendeleïev organized known elements by increasing atomic mass and grouped elements with similar properties, leaving gaps for undiscovered elements
2. 1900the electron was discovered with charge −e = −1.6 × 10⁻¹⁹ C and mass 9.1095 × 10⁻³¹ kg, much smaller than the mass of nucleons
3. 1925Erwin Schrödinger established the Schrödinger equation to describe the time evolution of a particle probabilistically

📖 1. Atomic Structure and Elementary Particles

🔑 Key Concepts & Definitions

• Atom : consists of one atomic nucleus and electrons surrounding it