All Chapters Video 2.1 Atomic Structure and the Bohr Model Master Lesson OutlineMaster Quiz Outline Question? Ask Dr. Mike! Lesson Summary Atomic Structure • Mass Number = (Protons) + (Neutrons)• Neutrons = (Mass Number) – (Protons) Bohr Model of the Atom • Electrons distance from their nuclei are quantized • The distance between each energy shell and the next shell above it gets smaller as you get further away from the nucleus. Lesson 2.1 Atomic Structure and the Bohr Model 2.1 Atomic Structure and the Bohr Model 2.1 Quiz Video Solution 2.2 Atomic Orbitals 2.3 Quantum Numbers 2.3 Quiz Video Solution 2.4 Electron Configuration 2.5 Condensed Electron Configuration, Valence, and Energy Diagrams 2.6 Electron Configuration Exceptions (Cr and Cu) 2.7 Excited Electron Configurations 2.7 Quiz Video Solution (2.4 - 2.7) 2.8 Paramagnetic vs. Diamagnetic 2.8 Quiz Video Solution 2.9 Emission Spectra, Heisenberg Uncertainty, Photoelectric Effect 2.9 Quiz Video Solution Instructor Dr. Mike Christiansen Dr. Christiansen is a chemistry professor at Utah State University and has a PhD in organic chemistry. He's been teaching students chemistry for nearly 12 years.