About This Chapter
GACE Physics: Atoms - Chapter Summary
Reinforce what you've learned about atoms by completing the short, fun video lessons in this chapter. You'll leave the chapter well-prepared for any GACE Physics assessment items about the following:
- Mass number and atomic number
- Early atomic theory
- Average atomic mass
- Avogadro's number
- Electron configurations
- The four quantum numbers
- The Bohr model
Use our unique tagging system to skip to the topics you need to study and follow along with text transcripts. The practice quizzes allow you to quickly confirm your understanding of the material.
1. 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.
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. 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.
4. Avogadro's Number: Using the Mole to Count Atoms
How do we move from the atomic world to the regular world? Because atoms are so tiny, how can we count and measure them? And what do chemists celebrate at 6:02 AM on October 23rd each year? In this lesson, you will be learning how Avogadro's number and the mole can answer these questions.
5. 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.
6. 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.
7. 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.
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Other chapters within the GACE Physics (530): Practice & Study Guide course
- GACE Physics: History & Nature of Science
- GACE Physics: Science & Society
- GACE Physics: Role in Daily Life & the Environment
- GACE Physics: Scientific Inquiry
- GACE Physics: Lab Safety Procedures & Hazards
- GACE Physics: Scientific Measurement & Data
- GACE Physics: Math for Physics
- GACE Physics: Properties of Matter
- GACE Physics: Kinematics
- GACE Physics: Force & the Laws of Motion
- GACE Physics: Oscillations
- GACE Physics: Laws of Gravitation
- GACE Physics: Principles of Fluids
- GACE Physics: Linear Momentum
- GACE Physics: Work & Energy
- GACE Physics: Equilibrium & Elasticity
- GACE Physics: Rotational Motion
- GACE Physics: Thermodynamics
- GACE Physics: Modern & Nuclear Physics
- GACE Physics: Relativity
- GACE Physics: Electrostatics
- GACE Physics: Magnetism
- GACE Physics: Electric Circuits
- GACE Physics: Waves, Sound & Light
- GACE Physics: Wave Optics
- GACE Physics: Energy Production
- GACE Physics Flashcards