About This Chapter
Atomic Structure in Chemistry Basics - Chapter Summary
If you need help understanding the basics of atomic structure in chemistry, you've reached the right place! This chapter is filled with fun lessons you can study any time to improve your knowledge of protons, neutrons, the Bohr model and more. Once you've finished this chapter, you will be ready to do the following:
- Discuss early atomic theory from Dalton, Thomson, Rutherford and Millikan
- Differentiate between protons and neutrons
- Exhibit knowledge of the atomic number and mass number
- Describe isotopes and average atomic mass
- Provide an explanation of Avogadro's number and how to use the mole to count atoms
- Share facts about the Bohr model and atomic spectra
As you progress through this chapter, feel free to take the quizzes accompanying the lessons to gauge your grasp of key concepts. Any questions you develop during your studies can be submitted to our subject-matter experts any time via the dashboard. For a broad review of this chapter before the day of your test, be sure to take our practice exam. Access these study tools any time via your computer or mobile device of choice.
1. 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.
2. Protons: Definition, Charge & Mass
Protons can be found in the nucleus of every atom. While originally it had been thought that protons were a fundamental particle, recent research has shown that protons are made of quarks. This lesson will cover the properties of the proton.
3. Neutrons: Definition & Concept
Neutrons are the big guys of the atom. This lesson explains the structure of the neutron, its properties, and some of its influences on the function of the atom.
4. 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.
5. 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.
6. 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.
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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