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Chapter 1 review

atoms and molecules

QuestionAnswer
positively charged particle in the nucleus of an atom proton
region surrounding an atom's nucleus where one or more electrons are found electron cloud
negatively charged particle the occupies the space in an atom out side the nucleus electron
one or more atoms of an element having the same number of protons but a different number of neutrons isotope
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 number of protons in the nucleus of an atom of an element atomic number
uncharged particle in the nucleus of an atom neutron
when you add protons to an element you get a... new element
when you add a neutron to an element you get a(n)... isotope
when you add an electron to an element you get a... negative ion
when you lose an electron to an element you get a... positive ion
Created by: arthutar2682
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