COURSE DESCRIPTION
Dear Learners,
Hello and welcome to the world of chemistry!
This online module is designed to engage you through interactive activities and real-world examples, providing a thorough exploration of the periodic classification of elements and chemical bonding. The course is divided into two main units, each tailored to deepen your understanding and appreciation of these fundamental concepts.
Unit 4 focuses on the historical development and structure of the periodic table. You will gain a foundational understanding of its evolution and the implications of its organization for the study of chemistry. This unit is crafted to provide Grade 9 learners with a solid base in the principles underlying the periodic classification of elements.
Unit 5 delves into the fundamental concepts of chemical bonding. You will explore various types of bonds, including ionic, covalent, and metallic, and their roles in molecule formation. Through interactive lessons and practical exercises, this unit aims to equip Grade 9 learners with essential skills and a comprehensive understanding of chemical bonding, highlighting its significance in the field of chemistry.
This module is structured to be engaging, informative, and relevant, reflecting how chemistry influences our world and contributes to sustainable development in Ethiopia and beyond.
I hope you find this module both educational and inspiring as you explore the principles of chemistry.
COURSE OBJECTIVES
Dear Learners,
Upon the completion of this module, you should be able to:
- Explain the historical development of the periodic classification of the elements;
- Describe the periodic classification of the elements;
- Develop the skills of correlating the electron configuration of elements with the periodicity of the elements, predicting the trends of periodic properties of elements in the periodic table;
- Acquire skills of classifications based on patterns in chemistry;
- Demonstrate scientific inquiry skills: observing, inferring, predicting, classifying, comparing and contrasting, making models, communicating, measuring, asking questions, interpreting illustrations, drawing conclusion, applying concepts and problem solving;
- Discuss the formation of ionic, covalent and metallic bonds;
- Explain the general properties of substances containing ionic, covalent and metallic bonds;
- Develop the skills of drawing the electron dot or Lewis structures for simple ionic and covalent compounds;
- Describe the origin of polarity within molecules.
ASSESSMENT METHODS
In this online module for grade 9 chemistry, learners engage in a variety of interactive activities designed to deepen their understanding of the principles and historical development of the periodic classification of elements, alongside a comprehensive study of chemical bonding. Quizzes, mid exam and final exam challenge your comprehension and problem-solving skills, while discussion forums encourage collaboration and peer- learning. Through these activities, learners not only grasp the basics of chemistry but also develop critical thinking abilities essential for scientific inquiry.
MODULE CONTENTS
Unit 4: PERIODIC CLASSIFICATION OF ELEMENTS
- 4.1 Historical Development of Periodic Classification of the Elements
- 4.2 Mendeleev’s Classification of the Elements
- 4.3 The Modern Periodic Table
- 4.4 The Major Trends in the Periodic Table
Unit 5: CHEMICAL BONDING
- 5.1 Chemical Bonding
- 5.2 Ionic Bonding
- 5.3 Covalent Bonding
- 5.4 Metallic Bonding
REFERENCES
- Grade 9 textbook
- Atkins, P., & Jones, L. (2016). Chemistry: Molecular Science. Oxford University Press.
- Timberlake, K. C. (2017). Chemistry: An Introduction to General, Organic, and Biological Chemistry. Pearson Education.
ABOUT THE INSTRUCTOR
Name: Abraham Berhanemeskel
Email address: abraham111105@gmail.com
Mobile number: +251985471532