About This Chapter
Electronic Structure - Chapter Summary
Engaging and fun video lessons can help you cement your comprehension of atomic energy and structure. Watching these videos can help you add to and refresh your knowledge of the excited state in chemistry, quantum numbers and electron configurations. The various topics you'll go over include:
- Pauli Exclusion Principle, Aufbau Principle, and Hund's Rule
- Diamagnetism & paramagnetism
- Atomic spectra and the Bohr model
- Absorption and emission spectra as well as photons and the photoelectric effect
- Heisenberg Uncertainty Principle
- Conventional notation for electron configuration and the four quantum numbers: principal, angular momentum, magnetic and spin
- Effective nuclear charge, periodic trends, and electron configurations in atomic energy levels
- Ground state electron configuration
These video lessons use simple, everyday language and concrete examples you can relate to so you will remember the most important concepts and key words more easily. Lessons also include scenario-based applications to bring your classroom learning into the living world. Instructors are well-versed in atomic physics and chemistry and have created engaging video content that will help keep you awake if this isn't your best subject.
You'll have the opportunity at the end of each lesson to complete a quiz to confirm your understanding of the necessary concepts. At the end of the chapter you also have the chance to take a multiple-choice exam as a check on learning.
1. Excited State in Chemistry: Definition & Overview
This lesson defines excited states of electrons within atoms and their significance in chemistry. Learn about this state, see several examples, and complete the brief quiz.
2. Atomic Structures: Pauli Exclusion Principle, Aufbau Principle & Hund's Rule
This lesson discusses the three main rules that govern how electrons fit in the atomic structure by filling the shells, subshells, and orbitals. We will also review the basics of quantum numbers before learning these principles.
3. Diamagnetism & Paramagnetism: Definition & Explanation
In this lesson, we learn more about electron configuration through the concepts of diamagnetism and paramagnetism. We will review electron structure in an atom, and define diamagnetism and paramagnetism.
4. The Bohr Model and Atomic Spectra
Do you ever wonder where light comes from or how it is produced? In this lesson, we are going to use our knowledge of the electron configurations and quantum numbers to see what goes on during the creation of light.
5. Four Quantum Numbers: Principal, Angular Momentum, Magnetic & Spin
Each electron inside of an atom has its own 'address' that consists of four quantum numbers that communicate a great deal of information about that electron. In this lesson, we will be defining each quantum number and explaining how to write a set of quantum numbers for a specific electron.
6. Electron Configurations in Atomic Energy Levels
This lesson will explain what the electrons are doing inside the atom. Tune in to find out how we specify where they are located and how this location description will help us predict an element's properties.
7. Ground State Electron Configuration: Definition & Example
The atom's electron structure is very important because it tells us about an atom's reactivity, and physical properties as well. In this lesson, we will cover the ground state electron configuration, which determines the electron's structure.
8. Electron Configurations in the s, p & d Orbitals
Getting confused by long lists that start with 1s and seem to go on forever? Don't worry, this lesson on electron configuration will help you understand how to describe electron placement in no time.
9. Heisenberg Uncertainty Principle: Definition & Equation
The Heisenberg uncertainty principle is one of the core concepts in quantum mechanics. In this lesson, we define the uncertainty principle and learn more about its implications for physical science.
10. Effective Nuclear Charge & Periodic Trends
This video lesson will describe effective nuclear charge and its role in explaining periodic trends. In particular, we will learn how to predict the trends in atomic radius and ionization energy using our knowledge of shielding and effective nuclear charge.
11. The Photoelectric Effect: Definition, History, Application & Equation
In this lesson, you will learn what the photoelectric effect is, how it was discovered, how it applies to everyday life, and the equation associated with it. A short quiz will follow.
12. Energy & Momentum of a Photon: Equation & Calculations
After watching this lesson, you will be able to explain what wave-particle duality is, provide the equations for the energy and momentum of a photon of light, and use those equations to solve problems. A short quiz will follow.
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