About This Chapter
How It Works:
- Identify the lessons in Prentice Hall Physical Science's Atomic Structure chapter with which you need help.
- Find the corresponding video lessons within this companion course chapter.
- Watch fun videos that cover the atomic structure topics you need to learn or review.
- Complete the quizzes to test your understanding.
- If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.
Students will learn:
- Atoms and the three subunits
- Identification of subatomic particles
- Structure of the atomic nucleus
- Early atomic theorists
- Electron cloud theory and model
- Bohr model of the atom
- Difference between mass number and atomic number
- Isotopes and atomic weight
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1. The Atom
Tune into this lesson to find out what matters about matter. What exactly is an atom? And, how do the atoms that make up the elements in the periodic table differ from one another?
2. What Is a Subatomic Particle? - Definition & Mass
A subatomic particle is a particle smaller than an atom. Learn more about how to identify subatomic particles through several examples, and test your knowledge with quiz questions.
3. Atomic Nucleus: Definition, Structure & Size
The atomic nucleus is the central part of the atom. There is a lot to be told by the structure of the atomic nucleus. This lesson goes through the structure of the atomic nucleus and other factors that the atomic nucleus tells us.
4. 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.
5. Electron Cloud: Definition, Model & Theory
Like the rapidly moving blades of a fan, electrons appear to occupy all of the space in an atom at once. Learn how electron location in an atom is best described by the electron cloud model and theory.
6. 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.
7. Atomic Number and Mass Number
Atoms are the basic building blocks of everything around you. In order to really understand how atoms combine to form molecules, it's necessary to be familiar with their structure. In this lesson, we'll dissect atoms so we can see just what really goes into those little building blocks of matter.
8. Isotopes and Average Atomic Mass
When you drink a glass of water, you are actually drinking a combination of heavy water and light water. What's the difference? Is it harmful? This video will explain the difference between the two types of water and go into detail on the significance of the different isotopes of elements.
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Other chapters within the Prentice Hall Physical Science: Online Textbook Help course
- Chapter 1: Science Skills
- Chapter 2: Properties of Matter
- Chapter 3: States of Matter
- Chapter 5: The Periodic Table
- Chapter 6: Chemical Bonds
- Chapter 7: Chemical Reactions
- Chapter 8: Solutions, Acids, and Bases
- Chapter 9: Carbon Chemistry
- Chapter 10: Nuclear Chemistry
- Chapter 11: Motion
- Chapter 12: Forces and Motion
- Chapter 13: Forces in Fluids
- Chapter 14: Work, Power, and Machines
- Chapter 15: Energy
- Chapter 16: Thermal Energy and Heat
- Chapter 17: Mechanical Waves and Sound
- Chapter 18: The Electromagnetic Spectrum and Light
- Chapter 19: Optics
- Chapter 20: Electricity
- Chapter 21: Magnetism