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Terms associated with Chapter 8, Nomenclature


an atom or group of atoms with excess charge


a positive ion


a negative ion


positive part of an atom


neutral part of an atom


negative part of an atom

Molecular Formula

actual number of atoms in a molecule

Empirical Formula

simplest ratio of atoms in a molecule


a measure of the degree of attractiveness for electrons

Diatomic Molecule

atoms naturally paired up in a covalent bond

Polyatomic Ions

a group of atoms with a net charge

Binary Compound

compounds having no polyatomic ions

Ternary Compound

compounds having at least one polyatomic ion

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