Ionic Bonding
Overview
Table salt, limestone, and the chalk on a blackboard all have something in common: they are held together by the same type of chemical bond. When metals react with non-metals, electrons are transferred from one atom to the other, creating charged particles called ions that are locked together by powerful electrostatic forces.
In this lesson you will learn how ions form, how to predict their charges from the Periodic Table, how to write formulae for ionic compounds, and why giant ionic lattices give these substances their characteristic high melting points.
Objectives
- Understand how ions are formed by electron loss or gain
- Know the charges of ions for metals in Groups 1, 2 and 3, non-metals in Groups 5, 6 and 7, and common polyatomic ions
- Write formulae for compounds formed between the ions listed
- Understand ionic bonding in terms of electrostatic attractions
- Understand why compounds with giant ionic lattices have high melting and boiling points
Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on Ionic Bonding. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- An ionic bond is best described as: A) The sharing of electrons between atoms B) The transfer of electrons from metal to non-metal C) The electrostatic attraction between oppositely charged ions D) A weak force between molecules Answer: C
- What charge does a Group 2 metal ion have? A) 1+ B) 2+ C) 1- D) 2- Answer: B
- Ionic compounds conduct electricity when molten because: A) The electrons are shared B) The ions are free to move C) The molecules break apart D) The metal melts Answer: B
- What is the formula of calcium chloride? A) CaCl B) CaCl2 C) Ca2Cl D) Ca2Cl3 Answer: B
- Ionic compounds have high melting points because: A) They contain heavy atoms B) They are made of molecules C) Strong electrostatic forces hold ions in a giant lattice D) They are always solids Answer: C
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Practice Mock Questions
Want to practice mock questions on Ionic Bonding? Download the Green Bridge CBT app to access mock questions and full practice assessments for this topic.
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