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Grade 6 Unit 3 Vocabulary Quizlet
Elements, Compunds, and Reactions
7
Science
6th Grade
10/18/2013
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Term
electron
 Definition
the negatively charged particle of an atom
Term
atomic number
 Definition
the periodic table organizes elements by
Term
exothermic reaction
 Definition
the type of reaction that always gives off energy is a
Term
protons nad neutrons
 Definition
small particles found in the nucleus of an atom
Term
nonmetals
 Definition
elements in which group are poor conductors of heat and electricty
Term
metals
 Definition
most of the elements on periodic table are
Term
isotopes
 Definition
carbon-12, carbon-13, and carbon 14 are
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