University of Southern California
Atomic Bonds
This slide show on atomic bonds contains several slides on electron affinity. Other topics include covalent, Sigma and Pi bonds, and atomic bonding in solids.
BBC
Bbc: Gcse Bitesize: Covalent Bonds
A covalent bond is formed between non metal atoms, which combine together by sharing electrons. Covalent compounds have no free electrons and no ions so they don't conduct electricity.
CK-12 Foundation
Ck 12: Lewis Electron Dot Structures
[Free Registration/Login may be required to access all resource tools.] The following online tutorial describes how a covalent bond forms, including the energy change involved in the process.Students will be asked to use the octet rule...
Simon Fraser University
Chem1 Virtual Textbook: Chemical Bonds: Covalent or Ionic or What?
Use this resource to understand polar covalence in ion-derived solids.
American Chemical Society
Middle School Chemistry: Energy Levels, Electrons, Ionic Bonding
Students discover that ionic bonding occurs when electrons are transferred from one atom to the other and not shared as in covalent bonding.
OpenStax
Open Stax: Chemical Bonds
Learn here about chemical bonds, a weak or strong electrical attraction that holds atoms in the same vicinity.
Chem Tutor
Chem Tutor: Bonds in General
A summary of bonding terms and the importance of electrons in bonding.
Chem4kids
Chem4 Kids: Ions
Here at Chem4Kids you can learn all about ions. Content explores what an ion is, its various characteristics, electrovalence, and more.
Chem Tutor
Chem Tutor: Radicals or Polyatomic Ions
This site includes a list of the names, formulas, and charges of some common polyatomic ions.
Frostburg State University
General Chemistry Online: Ionic and Molecular Compounds
Provides a good outline of the concepts involved in ionic and covalent bonding, with links to definition of terms. Features a list of common molecular compounds and a chart that compares ionic and molecular compounds.
Quia
Quia: Chemical Bonds (Ionic and Covalent) Quiz
This is 21-question multiple choice quiz over chemical bonds was written for a 7th-grade science class.
Sophia Learning
Sophia: Ionic Compounds: Naming Compounds With Polyatomic Ions: Lesson 1
This lesson will provide naming rules for ionic compounds containing polyatomic ions and give examples. It is 1 of 2 in the series titled "Ionic Compounds: Naming Compounds with Polyatomic Ions in Formula."
Sophia Learning
Sophia: Ionic Compounds: Formulas From Compound Names With Polyatomic Ions
This lesson will demonstrate how to write the formula for an ionic compound containing polyatomic ions given the systemic name.
Chem4kids
Chem4 Kids: Atoms
This site provides a detailed overview of atoms. Content explores an atom's structure, as well as what ions are, how atoms bond, what compounds are (including how to name compounds), and what isotopes are.
Chem Tutor
Chem Tutor: Chemistry: Compounds
This lesson focuses on chemical compounds including Ionic and Covalent Bonds, Valences, Lewis Structures, Binary Covalent Compounds, Radicals or Polyatomic Ions, and much more. It also includes a compound worksheet in which the learners...
Sophia Learning
Sophia: Naming Polyatomic Ions: Lesson 2
This lesson will explain that polyatomic ions have assigned names ending in -ate or -ite with a few exceptions, and discuss how ammonium is the only common polyatomic ion. It is 2 of 4 in the series titled "Naming Polyatomic Ions."
Khan Academy
Khan Academy: Molecules and Compounds
Article defines and explains compounds which are either ionic or covalent and molecules which are the simplest unit of a covalent compound. Molecules can be represented in many different ways.
Frostburg State University
General Chemistry Online: Molecules and Compounds
A complete lesson on compounds, from introductory material in the beginning to a practice exam at the end. This lesson covers bonding, ionic compounds, molecular compounds, naming compounds, structural formulas, polyatomic ions, and much...
Estrella Mountain Community College
Online Biology Book: Chemistry I: Atoms and Molecules
In this online biology textbook, learn about atoms and molecules as they relate to life. Find out about topics such as electrons and energy, chemical bonding, and chemical reactions.