A short assessment to see if you understand valence electrons in specific elements.

[Free Registration/Login may be required to access all resource tools.] In the following online tutorail students will learn how to express the arrangement of electrons in atoms through electron configurations and Lewis valence electron...

[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will sse the Periodic Table to identify and explain the properties of chemical families, including alkali metals, alkaline...

[Free Registration/Login may be required to access all resource tools.] In this learning module, students will explore how the form of the periodic table is related to electron configurations, which in turn influences chemical reactivity.

This tutorial investigates how to draw Lewis valence electron dot structures.

Detailed explanation of Valence Shell Electron Pair Repulsion (VSEPR) Theory with examples and questions for the reader to check comprehension. Also includes step-by-step instructions for correctly building molecules using VSEPR Theory....

A slide show presentation which demonstrates how to identify the number of valence electrons an element has based on its location on the periodic table.

Through a series of slide show presentations and a video lesson, strengthen your understanding of valence electrons. [2:46]

During this exercise, practice finding the number of valence electrons in an element. [1:22]

Given descriptions, diagrams, scenarios, or chemical symbols, students will model covalent bonds using electron dot formula (Lewis structures).

This lesson will demonstrate how to identify an element and state the number of valence electrons given its electron configuration. It is 3 of 3 in the series titled "Interpreting Electron Configurations."

An excellent tutorial that examines VSEPR and pairs of valence electrons. The valence shell electron pair repulsion concept is explored using animated models. Includes a VSEPR calculator. Use the toolbar on the left to navigate through...

In this activity, students use a map of electron configuration and bingo chips to configure electrons for elements that are given on a problem card. Students will see patterns of elements and their valence electrons in relation to the...

This instructor led activity will produce a partially filled periodic table that contains electron-dot models for the first twenty elements in the appropriate boxes. It will be used as a visual tool for students to connect concepts such...

Introduction to the concept of valence electrons that relates the idea to periodic properties and electron configurations.

The General Chemistry Virtual Textbook, or Chem 1, is broken into several sections covering various aspects of topics related to chemistry. This section deals with hybrid orbitals and specifically the valence bond model.

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses repulsion of electron pairs. Diagrams and charts of the repulsion are also provided.

Test your electron-configuration skills in this animated exercise. Practice writing the abbreviated configurations for some of the common elements on the periodic table.

Presents examples of molecules that do not match the expected bond angles in the Valence-Shell Electron-Pair Repulsion Model. Requires Java.

Students discover the concept that two atoms can attract and form a covalent bond.

[Free Registration/Login may be required to access all resource tools.] Covers valence shell electrons and inner shell electrons.

This lesson will describe the importance of valence electrons in the process of chemical bonding. It is 6 of 7 in the series titled "Valence Electrons."

This site from WebChem contains information on the subject of bonding with an emphasis on valence and core electrons.

This lesson will explain how to identify the number of valence electrons an element has based on its position on the periodic table. It is 3 of 3 in the series titled "Identifying Valence Electrons."