In this activity, students determine the number of valence electrons for a variety of elements. They will then create Lewis structures (using pieces of cereal or small candies as electrons) to show what happens when two of the elements combine via ionic bonding.
This assessment resource probes for student mastery of concepts associated with chemical bonding.
This activity review the rules for creating Lewis structures according to the NASL method.
This resource is an in-depth discussion, with diagrams, covering the different types of chemical bonding. It details ionic bonds, covalent bonds, polar covalence, and electronegativity.
This series of videos will introduce bonding theory.
In this lab activity, students burn a magnesium strip to reinforce the concepts of chemical and physical changes, reaction types, conservation of mass, formulas and equations, stoichiometry, Lewis structures, and to explore the concept of oxidation/reduction reactions. Students will answer questions during the lab regarding their measurements and observations and also write a lab report to describe their findings.
This webpage offers links to a variety of worksheets to provide students practice in determining polarity of molecules and identification of intermolecular forces from the Lewis structures.
Students will: determine the number of valence electrons using energy level diagrams; explain why elements lose or gain electrons during ionic bonding; define an ion; write correct ion notation; describe some properties of ionic compounds; develop a hypothesis which explains what happens when an ionic compound dissolves.
Ionic Bonds and Ionic CompoundsGiving us credit when you use our content and technology is not just important for legal reasons. When you provide attribution to CK-12 Foundation, you support the ability of our non-profit organization to make great educational experiences available to students around the world.Our Creative Commons License welcomes you to use our content and technology when you give us attribution. If you have any questions about our policies, contact us at support@ck12.org
Ionic CompoundsGiving us credit when you use our content and technology is not just important for legal reasons. When you provide attribution to CK-12 Foundation, you support the ability of our non-profit organization to make great educational experiences available to students around the world.Our Creative Commons License welcomes you to use our content and technology when you give us attribution. If you have any questions about our policies, contact us at support@ck12.org
In this lesson students learn about bond strengths/bond types by observing a demonstration. They apply this knowledge in their own experiments so they can predict bond strengths /bond types based on the locations of the bonding atoms on the periodic table. Students will illustrate the type of bond formed between atoms using 3-D models made from foam balls, toothpicks, rubber bands, and pipe cleaners.
Describe how a covalent bond forms, including the energy change involved in the process.Giving us credit when you use our content and technology is not just important for legal reasons. When you provide attribution to CK-12 Foundation, you support the ability of our non-profit organization to make great educational experiences available to students around the world.Our Creative Commons License welcomes you to use our content and technology when you give us attribution. If you have any questions about our policies, contact us at support@ck12.org
This activity provides students the basic rules for drawing Lewis dot diagrams and asks students to use manipulatives (colored fruit loops cereal pieces) to represent valence electrons and model covalent bonding between atoms.
This simulation provides practice in building Lewis Dot Structures from atoms and ionic compounds from the component ions.
Metallic BondsGiving us credit when you use our content and technology is not just important for legal reasons. When you provide attribution to CK-12 Foundation, you support the ability of our non-profit organization to make great educational experiences available to students around the world.Our Creative Commons License welcomes you to use our content and technology when you give us attribution. If you have any questions about our policies, contact us at support@ck12.org
In this lesson students will use molecular model kits to visualize molecule shapes, determine polarity of molecules, and to help them draw accurate Lewis structures for various molecules.
In this activity, students complete a bracket similar to the one used for basketball March Madness tournaments. In the first round, they add the charge for each listed ion; in the second round they combine the ions to form a neutral compound and write out the formula. Only one of the two compounds in each bracket from the second round will dissolve in water—move this compound on to the semifinals. When the two semifinal compounds in each bracket are both dissolved in water, two new compounds are possible; one is soluble and one will precipitate. The compound that is soluble moves on to the finals. The winner of the Chemistry Ion Tournament is the insoluble product obtained when the two finalists are dissolved in water.