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Ch 4: Periodic Table & Periodicity

About This Chapter

If you need to prepare for a chemistry exam or refresh your knowledge of periodicity and the periodic table, then look no further than this collection of mobile-friendly chemistry lessons. Work through the chapter at your own pace and take the practice quizzes to retain the information you study.

Periodic Table & Periodicity - Chapter Summary

These bite-sized chemistry study resources are designed to help you review the most important information about the periodic table of elements and periodicity. Work through the chapter to examine Dmitri Mendeleev's contributions to the field of chemistry, as well as the different groups and periods on the periodic table. You'll also take a look at periodic trends and the properties of metals, nonmetals and metalloids. After studying this chapter, you should be able to:

  • Understand how chemist Dmitri Mendeleev developed the periodic table
  • Define mass numbers and atomic numbers
  • Identify the periodic table's groups and periods
  • Determine how electron configurations relate to an atom's energy levels
  • Recognize group and period trends on the periodic table in terms of atomic and ionic radii, electronegativity and ionization energy
  • Evaluate the chemical and physical properties of metals, metalloids and nonmetals
  • Know how nuclear charge relates to periodic trends

Each lesson comes with a short self-assessment quiz to help you solidify your understanding of periodic table terms and concepts. The chapter can be studied at any time that fits your schedule, and you can use any computer or mobile device to access the lessons. Our expert chemistry instructors are available to answer your questions and your course Dashboard allows you to quickly find specific lesson topics.

9 Lessons in Chapter 4: Periodic Table & Periodicity
Test your knowledge with a 30-question chapter practice test
Dmitri Mendeleev & the Periodic Table: Biography, Contribution & Facts

1. Dmitri Mendeleev & the Periodic Table: Biography, Contribution & Facts

A man of many eccentricities, Dmitri Mendeleev and his contributions to the periodic table are so significant that they have been compared to Darwin and the development of the theory of evolution. Read about this legendary chemist and his role in developing one of the most important tools used in science. Then quiz yourself on your new knowledge.

Atomic Number and Mass Number

2. 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.

The Periodic Table: Properties of Groups and Periods

3. 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.

Electron Configurations in Atomic Energy Levels

4. 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.

Atomic and Ionic Radii: Trends Among Groups and Periods of the Periodic Table

5. Atomic and Ionic Radii: Trends Among Groups and Periods of the Periodic Table

Atoms are VERY tiny. How do we measure their size? This lesson will explain how the size of an atom is measured and teach you how to predict the relative size of an atom based on where it is located on the periodic table.

Electronegativity: Trends Among Groups and Periods of the Periodic Table

6. Electronegativity: Trends Among Groups and Periods of the Periodic Table

How is fluorine like a child that doesn't share his or her toys? Find out in this video on electronegativity where we will discuss group and periodic trends among the elements.

Ionization Energy: Trends Among Groups and Periods of the Periodic Table

7. Ionization Energy: Trends Among Groups and Periods of the Periodic Table

Do you know someone who has undergone radiation as a form of cancer treatment? Have you ever thought about why X-rays have health risks? Watch the video to find out what these types of radiation are really doing to atoms, define ionization energy and identify ionization trends on the periodic table.

Physical & Chemical Properties of Elements: Metals, Nonmetals & Metalloids

8. Physical & Chemical Properties of Elements: Metals, Nonmetals & Metalloids

Elements are elementary! They are simple substances that cannot be broken down. Learn how each element has its own unique set of physical and chemical properties, and how we use those properties to categorize them as metals, nonmetals, and metalloids.

Effective Nuclear Charge & Periodic Trends

9. Effective Nuclear Charge & Periodic Trends

This video lesson will describe effective nuclear charge and its role in explaining periodic trends. In particular, we will learn how to predict the trends in atomic radius and ionization energy using our knowledge of shielding and effective nuclear charge.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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