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Ch 4: AQA A-Level Chemistry: Periodicity

About This Chapter

Improve your ability to succeed on the AQA A-Level Chemistry test by getting reacquainted with periodicity. Expert instructors can help refresh your chemistry knowledge, and short quizzes can test your comprehension before taking the test.

AQA A-Level Chemistry: Periodicity - Chapter Summary

Don't let the process of studying for the AQA A-Level Chemistry test feel overwhelming. This chapter can reduce your stress with prepared lessons that cover periodicity. Experts cover the lessons in a fun and comprehensive manner that makes it easy for you to do the following on the exam:

  • Describe the properties of groups and periods on the periodic table
  • Provide details about valence and energy levels of atoms of elements
  • Define atomic and ionic radii, ionization energy and halogens on the periodic table
  • Explain electronegativity and trends among groups and periods of the periodic table
  • Share information about the diagonal relationship, metallic character and boiling point
  • Differentiate between transition metals and main group elements
  • Discuss the properties and characteristics of alkaline earth metals

You have the option of reviewing the lessons in this chapter as videos or full written transcripts. Access them as often as you'd like, and review them in the sequence that matches your current knowledge of periodicity. If you have questions about the lessons, don't hesitate to submit them to our experts. Before the day of the exam, be sure to test your knowledge of the lessons by taking short quizzes and the chapter exam.

9 Lessons in Chapter 4: AQA A-Level Chemistry: Periodicity
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.

Halogens on the Periodic Table: Properties, Reactivity & Uses

5. Halogens on the Periodic Table: Properties, Reactivity & Uses

Elements are grouped into families on the periodic table based on their chemical and physical properties. In this lesson, you will learn about a unique group known as the halogen family.

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.

The Diagonal Relationship, Metallic Character, and Boiling Point

7. 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

8. 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!

Alkaline Earth Metals: Definition, Properties & Characteristics

9. Alkaline Earth Metals: Definition, Properties & Characteristics

Column 2A of the periodic table is home to the reactive alkaline earth metals. We find these elements in fireworks, vitamins, and even running through our own veins. Learn some properties and characteristics of this group of elements, and then take a quiz.

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.
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