The Periodic Table
Overview
Over a hundred elements have been discovered, and the Periodic Table organises every one of them in a pattern that reveals their properties at a glance. Knowing where an element sits in the table tells you whether it is a metal or a non-metal, how many outer-shell electrons it has, and how it is likely to react.
In this lesson you will learn how elements are arranged by atomic number into groups and periods, how to use the table to distinguish metals from non-metals, and why elements in the same group share similar chemical properties.
Objectives
- Understand how elements are arranged in the Periodic Table in order of atomic number, in groups and periods
- Identify an element as a metal or a non-metal according to its position in the Periodic Table
Mind map
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Flashcards
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Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on The Periodic Table. 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.
- Elements in the Periodic Table are arranged in order of: A) Atomic mass B) Atomic number C) Number of neutrons D) Electron shells Answer: B
- Elements in the same group have similar properties because they have the same: A) Number of protons B) Number of electron shells C) Number of outer-shell electrons D) Atomic mass Answer: C
- Which of the following is a property of metals? A) Poor conductors of electricity B) Brittle as solids C) Form positive ions D) Have acidic oxides Answer: C
- The noble gases are unreactive because: A) They are very light B) They have full outer electron shells C) They have no protons D) They are always gases Answer: B
- An element in Group 7 and Period 2 would be: A) Lithium B) Carbon C) Fluorine D) Neon Answer: C
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Practice Mock Questions
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