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Chapter 1 review

atoms and molecules

QuestionAnswer
region at the center of an atom that contains most of the mass of an atom nucleus
an atom that has a charge because it has gained or lost electrons ion
the modern model of an atom is called the______model electron-cloud
Isotopes have the same number of protons but different numbers of________ neutrons
which particle in an atom has a positive charge proton
Created by: nelsosal2702
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