5.1 Electron structure

Join award-winning science educator Dr. David Boyce as he unpacks the fascinating evolution of our understanding of the atom. In this engaging video, Dr. Boyce takes us on a journey through the revolutionary shift in atomic theory brought about by quantum mechanics.
Learn how the model of the atom transformed to include the concept of electron orbitals, and explore the s, p, d, and f subshells that define the structure of atoms. Dr. Boyce breaks down the principles of orbital filling, including the intriguing reason why the 4s orbital is filled before the 3d orbitals.
Whether you're a student, educator, or simply curious about the foundations of chemistry and physics, this video offers a clear and accessible explanation of one of science’s most important concepts.
🔬 Key Topics Covered:
Evolution of atomic models
Introduction to quantum mechanics
Understanding electron orbitals and subshells (s, p, d, f)
The Aufbau principle and orbital filling order
Why 4s fills before 3d
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