The Periodic Table
Overview
The Periodic Table is chemistry's most powerful reference tool. Over a hundred elements are arranged in a single chart that reveals patterns in their properties, predicts how they react, and connects directly to the electron configurations you studied in the previous topic.
In this lesson you will learn how the table is organised by atomic number, groups and periods, deduce electronic configurations for the first twenty elements, classify metals and non-metals by their properties, and discover why elements in the same group share similar chemistry.
Objectives
- understand how elements are arranged in the Periodic Table: - in order of atomic number - in groups and periods.
- understand how to deduce the electronic configurations of the first 20 elements from their positions in the Periodic Table
- understand how to use electrical conductivity and the acid-base character of oxides to classify elements as metals or non-metals
- identify an element as a metal or a non-metal according to its position in the Periodic Table
- understand how the electronic configuration of a main group element is related to its position in the Periodic Table
- understand why elements in the same group of the Periodic Table have similar chemical properties
- understand why the noble gases (Group 0) do not readily react
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 increasing: A) Mass number B) Relative atomic mass C) Atomic number D) Number of neutrons Answer: C
- An element has the electronic configuration 2.8.2. Which group is it in? A) Group 2 B) Group 8 C) Group 12 D) Group 0 Answer: A
- Which of the following is a property of non-metals? A) Good electrical conductors B) Malleable C) Form acidic oxides D) High melting points Answer: C
- The noble gases are unreactive because they have: A) No electrons B) Full outer electron shells C) No neutrons D) An equal number of protons and neutrons Answer: B
- As you go down Group 1, the elements become: A) Less reactive B) More reactive C) Less metallic D) Harder Answer: B
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.
Recommended Books
Practice Mock Questions
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