SLO 3.1 Electronic Structure

Key Concepts and Skills

• Orbitals: Depict the general shape and thus region of space an electron would most likely be found based on its shell and subshell.
• Electron Configurations of Atoms and Ions: Write electron configurations for atoms/ions using full notation, orbital box diagram notation, and noble-gas shorthand not including irregular filling patterns. Identify neutral atoms given a ground state electron configuration.
• Photoelectron Spectroscopy: Explain the photoelectric effect and identify the key features of a photoelectron spectrum and the information that can be obtained from it. Draw a photoelectron spectrum from an energy level diagram and vice versa. Explain why the basic shell model fails to predict the photoelectron spectrum of atoms. Explain how the observed magnetic properties of an atom provide information about electron configuration.
• Quantum Numbers: Given a particular electron determine a possible set of quantum numbers, evaluate statements about the relationship between quantum numbers, electron configurations and relative energy of electrons of atoms. Assess the validity of a set of quantum numbers.
• Diamagnetism Identify atoms and ions as diamagnetic/paramagnetic by analyzing electron configurations.

Reading

• From the textbook:
  • 8.1 Schrodinger’s Cat
  • 8.2 The Nature of Light
  • 8.3 Atomic Spectroscopy and the Bohr Model
  • 8.5 Quantum Mechanics and the Atom
  • 8.6 The Shapes of Atomic Orbitals
  • 9.3 Electron Configurations: How Electrons Occupy Orbitals
  • 9.4 Electron Configurations, Valence Electrons, and the Periodic Table
• POGIL Activities
  • CA-8: What is Photoelectron Spectroscopy?
  • CA-9: Does the Shell Model Change Again When More Data is Obtained?
  • CA-F: Where Do Electrons Hang Out?
• Other:
  • Electromagnetic Radiation
  • Chapter 11: Modern Atomic Theory (from An Introduction to Chemistry)
  • Electronic Structures
  • Orbital Configurations
  • Electronic Orbitals
  • Shells and Orbitals
  • Quantum Numbers
  • Atomic Orbitals

Important Terms

Sample Assessment Questions

Dr. Thompson Videos

• Photoelectron Spectroscopy

• Quantum Numbers

• Electron and Orbital Configurations

External Videos, Tutorials, Simulations

• Khan Academy - Quantum Numbers
• Crash Course Chemistry - Electrons
• Organic Chemistry Tutor - Subshells
• Khan Academy - Electron Configurations
• Photoelectron Spectroscopy
• Electron Configurations
• Electron Configurations of Ions

Practice Problems

• From the textbook:
  • 8.1, 8.3, 8.27-29, 8.57-64, 8.66, 8.78, 8.81, 9.18-19, 9.39-48, 9.83-86
• From other external sources:
  • Electronic Structures of Atoms and Ions
• From Dr. Thompson (links and embedded versions below):
  • Orbitals and Energy Diagrams
  • Electron Configurations

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