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chapter 3
science vocab
7
Science
8th Grade
11/20/2015
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Term
chemical formula
 Definition
uses these chemical symbols to represent atoms
Term
subscript
 Definition
is a number written to the right of a chemical symbol
Term
ionic bond
 Definition
is a positive ion
Term
covalent bond
 Definition
is two electrons in a atom
Term
molecule
 Definition
a group of atoms held together by covalent bonds
Term
polar covalent bond
 Definition
is shared unequally
Term
metallic bond
 Definition
is a special bond
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