Periodic Table of Elements
Angie Turner
Introduction
Standards
Objectives
Activities
Assessment 
Results
Resources
           
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Introduction

This unit covers  Mendeleev and other chemists in developing the periodic table.
It supplies students with a rationale for the development of a classification system. We will explain how periodic law is used to predict element's physical and chemical properties. It will also show regularities and trends observed among elements.

Subject:   Chemistry
Topic: Periodic Table
Grade Level:  9 through 12
Student Lesson name and URL:
Standards Addressed

Science: Chemistry

This lesson addresses the standard:
  #1.   Atomic and Molecular Structure

The periodic table displays the elements in increasing atomic number and shows how periodicity of the physical and chemical properties of the elements relates to atomic structure.
 

Instructional Objectives

a) Students  know how to relate the position of an element in the periodic table to its atomic number and atomic mass.
b) Students know how to use the periodic table to identify metals, semimetals, nonmetals, and halogens.
c) Students know how to use the periodic table to identify alkali metals, alkaline earth metals and transition metals, and isotopes. 

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Student Activities
1. Use a picture of an alchemist to relate past knowledge of metals and how man    experimented with them.
2.  Student Experiment with metals and nonmetals to identify them by their properties.
3.  Organization of the periodic table and its significance for identifying metals, nonmetals, semimetals or metalloids
4.  Periodic table worksheets and activities
5.  Sizes of atoms and how they relate to position on the table
6.  Activities on Periodic and Group Trends 

Introductory Activity

1. Display in random order a number of the elements and compounds from your stockroom. Include a variety of elements that were known in ancient times.
2. Students should be made aware of the difficulty of listing all the properties for each substance. A classification allows us to generalize concerning some properties.
3. Discuss with students information available from the periodic table. Include: atomic mass, isotopes, atomic number, symbol, name, atomic mass, group, electron configuration, and whether the element is a metal, nonmetal, metalloid, or nobel gas. Also, point out the position of the actinide and lanthanide series.
 
 

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Enabling Activity(ies)

1. Use an illustration of Mendeleev's original periodic table of the elements. Ask students to compare this to the modern periodic table.

2. Have students examine the atomic numbers on the periodic table to see if any are out of numerical sequence. Have them do the same with the atomic masses.

3. Assign letters or numbers to all or some of the elements. Then write down chemical and physical properties on separate index cards. Keep a separate list of each name. Ask the students to organize them based on the information given.

4. Metal and Nonmetal Lab to test and see the differences.

5.Coinium Lab to understand isotopes and atomic mass.
 
 
 
 

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Culminating Activity
Lab reports
Group reports
Test
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Assessment
 Rubric

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Results
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Web Resources & Supplementary Materials

Introductory Activity
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Enabling Activity
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Culminating Activity
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Pretest

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Last Revised: 06/30/2000 (insert and update last revision date every time you work on this page.)