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Chap 6
Prentice Hall Physical Science Concepts in Action
8
Science
9th Grade
08/31/2009

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Term
electron dot diagram
Definition
A model of an atom in which each dot represents a valence election.
Term
ion
Definition
An atom or group of atoms that has a positive or negative charge.
Term
anion
Definition
An ion with a negative charge.
Term
cation
Definition
An ion with a postive charge.
Term
chemical bond
Definition
The force that holds atoms or ions together as a unit.
Term
ionic bond
Definition
The force that holds cations and anions together.
Term
Chemical formula
Definition
Notation that shows what elements a compound contains and the ratio of the atoms of the atoms or ions of these elements in the compound.
Term
crystals
Definition
Solids whose particles are arranged in a lattice.
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