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Ch 10: The Periodic Table - ORELA Middle Grades General Science

About This Chapter

Watch our lessons to brush up on your understanding of the periodic table as you prepare for the ORELA Middle Grades General Science exam. Our videos, quizzes, transcripts and other study aids offer a variety of ways to review this information at your own pace.

ORELA Middle Grades General Science: The Periodic Table - Chapter Summary

Use this chapter's lessons to review information on the organization of the periodic table and how it related to the behavior and structure of the elements. You can watch our videos and take the quizzes to refresh your knowledge in preparation for ORELA Middle Grades General Science exam questions on topics such as:

  • Groups and periods and their properties
  • Valence electrons
  • Atomic and ionic radii
  • Ionization energy
  • Electronegativity
  • Metallic character, boiling point and the diagonal relationship
  • Transition metals
  • Properties of main group elements

These videos average about five or ten minutes in length and are taught by expert instructors who make their points through the use of graphics, animations and humor. Every lesson includes a video timeline with tags you can use to quickly locate a part of the lesson you wish to re-watch. If you have questions, use our message board to contact the instructors.

ORELA Middle Grades General Science: The Periodic Table - Chapter Objectives

Passing the ORELA Middle Grades General Science exam is one of Oregon's requirements for certification to teach the subject. This chapter offers a review that will prepare you for questions on the periodic table's structure and functions. Questions on material covered in the Periodic Table chapter are included in the ORELA exam's physical science content domain, which comprises 31 percent of the test. All questions are multiple-choice, and our lesson quizzes offer good practice with similarly formatted questions.

7 Lessons in Chapter 10: The Periodic Table - ORELA Middle Grades General Science
Test your knowledge with a 30-question chapter practice test
The Periodic Table: Properties of Groups and Periods

1. 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.

Valence Electrons and Energy Levels of Atoms of Elements

2. Valence Electrons and Energy Levels of Atoms of Elements

The periodic table contains a wealth of information. This lesson will explain how to use it to quickly determine the most useful information about the most important electrons. We will be focusing our discussion on valence electrons and energy levels.

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

3. 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.

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

4. 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.

Electronegativity: Trends Among Groups and Periods of the Periodic Table

5. 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.

The Diagonal Relationship, Metallic Character, and Boiling Point

6. The Diagonal Relationship, Metallic Character, and Boiling Point

What may have once seemed like a bunch of random squares with letters in them is now shaping up to be one very organized chemistry reference. In this lesson you will discover three other trends that are found on the periodic table: the diagonal relationship, trends in metallic character, and trends in boiling point.

Transition Metals vs. Main Group Elements: Properties and Differences

7. Transition Metals vs. Main Group Elements: Properties and Differences

Which is better: to be steadfast and consistent or to be a colorful chameleon? This lesson compares and contrasts the main group elements and the transition metals. Then make your own decision!

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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