About This Chapter
MEGA General Science: Properties of Matter - Chapter Summary
These short lessons are to be used as a refresher on the properties of matter in advance of your taking the MEGA General Science test. They will help you answer questions that could be on the test about such things as:
- The structure of an atom
- An examination of atomic structures in relation to the Pauli Exclusion Principle, the Aufbau Principle and Hund's Rule
- A look at Quantum Theory
- A discussion of Lewis Dot Structures
- Atomic energy levels and electron configurations
- The definition of an element
- A description of a chemical compound
- The makeup of a heterogeneous mixture
- The difference between acids and bases
- How to use the periodic table
- The physical and chemical properties of matter
- An understanding of states of matter and comparing chemical versus physical changes to matter
- A view into the properties of solids and liquids, and kinetic molecular theory
- The uses and benefits of radioactive materials
Our subject matter experts make the material interesting and will test your understanding of the material with a quiz after each lesson. If your quiz results indicate a need to re-look at any of the lesson, you can either make use of the transcript or use the handy, keyword-based timeline tool for finding the right part of the video to watch again. You can also take advantage of the feature we provide for you to pose a question directly to our experts.
1. What Are Atoms? - Definition & Structure
An atom is the basic building block of all matter. Everything in existence is made up of atoms. Learn more about the atom, its history and structure, then test your knowledge with quiz questions.
2. Early Atomic Theory: Dalton, Thomson, Rutherford and Millikan
Imagine firing a bullet at a piece of tissue paper and having it bounce back at you! You would probably be just as surprised as Rutherford when he discovered the nucleus. In this lesson, we are going to travel back in time and discuss some of the major discoveries in the history of the atom.
3. Hund's Rule, the Pauli Exclusion Principle & the Aufbau Principle
Hund's rule, the Pauli exclusion principle, and the Aufbau principle are the three rules governing how electrons fit in the atomic structure. In this lesson, we will learn how these rules work and how they relate to the four quantum numbers.
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. Lewis Dot Structures: Resonance
In this lesson, we'll review Lewis dot structures and how to draw them. Then, learn about resonance and resonance structures for molecules and polyatomic ions. Afterwards, assess your new knowledge with a quiz.
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. What Are Elements?
Look around you. What do you see? Elements are everywhere. They are the building blocks of all matter on Earth. In this lesson, we will discuss what an element is, how elements are written as symbols, and how elements are the building blocks of all matter.
8. What Is a Chemical Compound? - Definition & Examples
Very few single chemical elements are encountered in everyday life. In this lesson, you will learn about chemical compounds through some examples to gain a better understanding of what they are and how they form.
9. Heterogeneous Mixture: Definition & Examples
You come into contact with mixtures every day. Most of the foods we eat and drink are some form of mixtures. In this lesson, you will learn about heterogeneous mixtures and the types of heterogeneous mixtures recognized by scientists.
10. Acids and Bases
Have you ever wondered how we measure the acidity of liquids? Check out this lesson to see how acids and bases are measured on a pH scale and how they relate to neutral solutions, such as water.
11. The Periodic Table: Properties of Groups and Periods
How is the periodic table like the map you used on your last road trip? In this lesson, you will be introduced to the periodic table, the road map of chemists. We will discuss how the elements are organized and how you can use this organization to identify some of their major physical properties.
12. Matter: Physical and Chemical Properties
How are substances identified? There are two major ways we can describe a substance: physical properties and chemical properties. Learn about how chemists use properties to classify matter as either a mixture or a pure substance.
13. States of Matter and Chemical Versus Physical Changes to Matter
The world around us is constantly changing. Chemists put those changes into two main categories: physical changes and chemical changes. This lesson will define and provide examples of each.
14. The Kinetic Molecular Theory: Properties of Solids and Liquids
This lesson explores the kinetic molecular theory and how it pertains to the properties of solids and liquids. You'll learn the properties of solids and liquids, discover the types of intermolecular attractions that occur between them and gain an understanding how phase changes happen.
15. What Are Radioactive Materials? - Definition, Examples, Uses & Benefits
Radioactive materials are all around us. Some are beneficial, while others may cause us harm. In this lesson you'll learn what radioactive materials are and explore where they come from and how they can be useful to us.
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Other chapters within the MEGA General Science: Practice & Study Guide course
- MEGA General Science: Practices of Science & Engineering
- MEGA General Science: Analyzing Scientific Information
- MEGA General Science: Science, Technology & Society
- MEGA General Science: Gases
- MEGA General Science: Inorganic Compounds & Chemical Bonds
- MEGA General Science: Stoichiometry & Reactions
- MEGA General Science: Energy Transformations
- MEGA General Science: Force, Motion & Energy
- MEGA General Science: Newton's Laws
- MEGA General Science: Mechanical & Electromagnetic Waves
- MEGA General Science: Electricity & Magnetism
- MEGA General Science: Types of Cells
- MEGA General Science: Classification of Living Organisms
- MEGA General Science: Genetics
- MEGA General Science: History of Life & Evolution
- MEGA General Science: Organisms & Their Environments
- MEGA General Science: Earth History & Structure
- MEGA General Science: Earth's Hydrosphere
- MEGA General Science: Atmosphere, Climate & Weather
- MEGA General Science: The Universe
- MEGA General Science Flashcards