BJU Physical World - Intro to Physical Science - Ch 8
Question
Answer
anion
An ion with a negative charge.
cation
An ion with a positive charge.
chemical bonds
The attraction that holds atoms together.
covalent bond
A chemical bond formed by atoms sharing electrons.
crystal lattice
A solid structure formed by a regular alternating pattern of positive and negative ions.
diatomic molecule
A molecule formed of two identical atoms bonded together.
double bond
Occur when two pairs of electrons are shared in a covalent bond.
electrolyte
A solute that ionizes in solution and conducts electricity.
electronegativity
The measure of how strongly an atom holds its electrons.
formula unit
The basic repeating unit of an ionic solid.
free electron theory
A description of metallic bonding that uses randomly shared electrons to explain the properties of metals.
ion
A charged atom or group of atoms formed by the loss or gain of electrons.
ionic bond
A chemical bond in which electrons are transferred from one atom to another.
Lewis dot structure
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.
metallic bonds
A chemical bond in which metal atoms are thought to randomly share their valence electrons.
molecule
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.
triple bond
A bond in which three pairs of electrons are shared by the elements.
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