SCH4U - Chemistry 12 (2024-25) - A

Welcome to lesson 1-2: The Quantum Mechanical Model of the Atom. In this lesson you will discover how the model of the atom evolved beyond Bohr & Rutherford to the modern, Quantum Model of the Atom. This lesson introduces the 4 quantum numbers and how they relate to orbital energy, shape, orientation and electron spin.

Learning Goals:

• • Understand that electrons do not orbit the nucleus in the circular pattern that Bohr theorized.
  • Understand how orbitals are distributed within an atomic shell.
  • Explain how quantum numbers describe electrons and their orbitals.

Success Criteria

I know I have achieved the learning goals when I can describe electrons and atomic orbitals using quantum numbers.