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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.
American Chemical Society
Middle School Chemistry: Energy Levels, Electrons, and Ionic Bonding
Explore ionic molecular bonds and how electrons and their energy levels come into play.
American Chemical Society
Middle School Chemistry: Represent Bonding With Lewis Dot Diagrams
Students draw and interpret Lewis dot diagrams for individual atoms and both covalent and ionic compounds.
CK-12 Foundation
Ck 12: Chemistry for High School
This digital textbook covers core chemistry concepts and includes interactive features, real-world examples, and videos.