Glossary 1.1

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The glossary provides definitions and explanations of key terms and concepts essential to understand the topic in the lesson. Be sure to familiarize yourself with each term before attempting the lesson glossary quiz.

Browse the glossary using this index

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V

Valence electron

an electron in the outermost energy level or shell of an atom

van der Waals forces

very weak attractions between two molecules, or parts of molecules, when they are close together