About This Chapter
Electronic Structure of Atoms - Chapter Summary
In this chapter, you'll learn basic concepts surrounding the electronic structure of atoms. These expertly taught video lessons use concise definitions and explanations to illustrate topics relating to electron configurations, paramagnetism, orbital diagrams, quantum numbers, electromagnetic radiation and more. When you finish a lesson, try the accompanying self-assessment quiz to make sure you fully understand the information. The chapter can be accessed whenever you need it, and our subject matter experts are available and happy to answer any questions you may have. By the end of the chapter, you should be able to:
- Compare types of light waves
- Define electromagnetic radiation
- Calculate electromagnetic wave energy
- Discuss quantum theory, the quantum mechanical model and quantum numbers
- Describe the ground state electron configuration
- Evaluate electron orbital shapes and shells
- Explain the applications of electron orbital diagrams
- Differentiate between paramagnetism and diamagnetism
- Outline valence electron configurations
- Recognize electronegativity and ionization energy trends on the periodic table
- Use the electron affinity equation
1. Light Waves: Definition, Types & Uses
This lesson will define electromagnetic waves, explaining the distinction between them and 'light waves.' We will also discuss the various kinds of waves in the electromagnetic spectrum and their uses. A short quiz will follow.
2. What is Electromagnetic Radiation? - Wavelength, Spectrum & Energy
Light, microwaves, X-rays, and cell phone transmissions are all examples of electromagnetic radiation. Read more about this fascinating, mostly invisible phenomenon that has been harnessed by humans for so many purposes. A quiz is included.
3. Practice Calculating Energy of Electromagnetic Waves
Electromagnetic waves range from tiny gamma rays to large radio waves. In this lesson, we'll calculate the energy of various electromagnetic waves including how this applies to the photoelectric effect.
4. Quantum Theory: Definition & Examples
After watching this lesson you will be able to explain what quantum theory is, including some key principles and scenarios, and list some applications of quantum theory. A short quiz will follow..
5. The Quantum Mechanical Model: Definition & Overview
Discover the quantum mechanical model of the atom and determine the way in which it is different from the orbital model. Learn about the quantum mechanical properties of electrons, then take a quiz to test what you know.
6. Principal Quantum Number: Definition & Example
Quantum numbers were developed to characterize electrons - its electron configuration, movement and position in an atom. Each electron has a unique set of quantum numbers. Of the four quantum numbers, our focus in this lesson is the principal quantum number.
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 Orbital: Definition, Shells & Shapes
In this lesson, we will talk about electron shells and the orbitals within them. We'll also explore the different shapes of orbitals and when we're finished, you can test your knowledge with a quiz.
9. Practical Application for Drawing Electron Orbital Diagrams
While drawing electron orbital diagrams sounds complicated, this lesson will keep things simple, giving step-by-step instructions on how to properly fill out an orbital diagram for different elements.
10. Valence Electron: Definition, Configuration & Example
Electrons are an essential part of an atom. Unlike protons and neutrons, valence electrons take part in the excitement of a chemical reaction. Learn how to find the number of valence electrons of any element in this lesson.
11. Electron Affinity: Definition, Trends & Equation
When an electron is added to an atom, a change in energy occurs. This change in energy is what we call the electron affinity. In this lesson, we will discuss electron affinity and its general trend in the periodic table.
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- Overview of Chemistry & Matter
- Intro to Scientific Measurement
- Basics of Atoms, Elements & the Periodic Table
- Building Chemical Compounds
- Mass Relationships for Molecules & Compounds
- Chemical Reactions & Quantities
- Chemical Reactions in Solutions
- Properties of Aqueous Solutions
- Energy & Thermochemistry
- Intro to Chemical Bonding
- Nuclear Reactions in Chemistry
- Intermolecular Forces, Liquids & Solids
- Physical Properties of Solutions
- Chemical Reactions, Rate Laws & Constants
- Principles of Chemical Equilibrium
- Acids, Bases, Water & Salts
- Solubility Equilibria
- Spontaneity of Reactions
- Electrochemistry, Voltaic Cells & Thermodynamics