Lesson 5: Introduction — The Periodic Table of Elements
Completion requirements
Lesson 5:
The Periodic Table of Elements
Lesson 5:
The Periodic Table of Elements
The periodic table is the most important chemistry reference there is. It describes the atomic structure of all elements that are known to mankind. For instance, by looking at the periodic table, a person can find out how many electrons the element has and how much it weighs. Each element has its own separate set of such data — no two elements are the same. Therefore, if someone is uncertain what matter he has, he can look at the atomic structure of the material, compare it to the information in the periodic table, and identify the material by matching it to the element on the table with the same data. In this lesson, you will learn more about the periodic table of elements.
In this lesson, you will:
- learn about the development of the periodic table and how it is used to organize different elements
- learn how the elements are organized by various properties
Key terms for this lesson:
- atomic mass
- atomic number
- element
- periodic table