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vocabulary

study guide

QuestionAnswer
Atom Basic unit of matter
Electron Negatively charged particle; located outside the atomic nucleus
Element Substance consisting entirely of one type of atom
Isotope Atom of an element that has a number of neutrons different from that of other atoms of the same element
Compound Substance formed by the chemical combination of two of more elements in definite proportions
Ionic Bond Bond formed when one or more electrons are transferred from on atom to another
Ion Atom that has a positive or negative charge
Covalent Bond Bond formed by the sharing of electrons between atoms
Molecule Smallest unit of most compounds
Van Der Waals Forces A slight attraction that develops between the oppositely charged regions of nearby molecules
Cohesion Attraction between molecules of of the same substance
Adhesion Attraction between molecules of different substances; in plants, attraction between unlike molecules
Mixture material composed of two of more elements or compounds that are physically mixed together but not chemically combined
Created by: JORBAT30
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