Glossary of physical science chap. 8

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a charged atom or group of atoms formed by the loss or gain of electrons
a solute that ionizes in solution and conducts electricity
free electron theory
a description of metallic bonding that uses randomly shared electrons to explain the properties of metals
chemical bonds
the attraction that holds atoms together
triple bond
a bond in which three pairs of electrons are shared by the elements
ionic bond
a chemical bond in which electrons are transferred from one atom to another
formula unit
a basic repeating unit of an ionic solid
an ion with a negative charge
metallic bond
a chemical bond in which metal atoms are thought to randomly share their valence electrons
crystal lattice
a solid structure formed by a regular alternating pattern of positive and negative ions
covalent bond
a chemical bond formed by atoms sharing electrons
double bonds
occur when two pairs of electrons are shared in a covalent bond
the measure of how strongly an atom holds its electrons
an ion with a positive charge
Lewis dot structures or
electron dot notation
a method of representing atoms and ions that uses an element's symbol for the nucleus and inner electrons and a series of dots for the valence electrons
diatomic molecule
a molecule formed of two identical atoms bonded together
a particle made up of two or more atoms chemically joined together; a particle formed by a limited number of atoms bonded covalently; the basic unit of a covalent compound

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