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chapter 13
chapter 13 vocab
9
Science
8th Grade
01/17/2011

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Term
chemical bonding
Definition
the combining of atoms to form molecules or ionic compounds
Term
chemical bond
Definition
an interaction that holds atom or ions together
Term
valence electron
Definition
an electron that is found in the outermost shell of an atom and that determines the atoms chemical properties
Term
ionic bond
Definition
a bond that forms when electrons are transferred from one atom to another which results in a positive ion and a negative ion
Term
ion
Definition
a charged particle that forms when an atom or group of atoms gain or lose or more electrons
Term
crystal lattice
Definition
the regular pattern in which a crystal is arranged
Term
covalent bond
Definition
a bond formed when atoms share one or more pairs of electrons
Term
molecule
Definition
the smallest unit of a substance that keeps all of the pyhsical and chemical properties of that substance
Term
metallic bond
Definition
a bond formed by the attraction between positively charged ions and the electrons around them
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