Exploring the Periodic Table: The Building Blocks of Matter

Exploring the Periodic Table: The Building Blocks of Matter

Learning Objective

At the end of the lesson, you will understand the structure and function of the periodic table, identify key elements, and explain atomic theory basics.

What do you already know about the periodic table and atomic structure?

Introduction to the Periodic Table

The periodic table organizes elements by increasing atomic number. It groups elements with similar properties in columns.

Atomic Number and Mass

The atomic number is the number of protons in an atom's nucleus. Atomic mass is the average mass of an element's isotopes.

Groups and Periods

Groups are vertical columns; periods are horizontal rows. Elements in a group share chemical properties.

Metals, Nonmetals, and Metalloids

Metals are conductive and malleable. Nonmetals are insulating and brittle. Metalloids have mixed properties.

Key Element Families

Alkali metals, alkaline earth metals, halogens, and noble gases are key families with distinct properties.

Interactive Element: Building an Element

Use an interactive tool to create an element by adjusting protons, neutrons, and electrons.

Summary and Reflection

Review the periodic table's structure, key element families, and atomic theory basics. Reflect on learning.

Write down 3 things you learned in this lesson.

Write down 2 things you want to know more about.

Ask 1 question about something you haven't quite understood yet.