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Chapter 16 sect. 1-2

atomic structure

TermDefinition
isotope atoms of the same element that have different numbers of neutrons
average atomic mass weighted average mass of all naturally occuring isotopes of an element
atomic number identifies the type of atom
mass number sum of the number of protons and number of neutrons in the nucleus
protons particles in the nucleus with an electrical charge of +1
Neutrons electrically neutral particles in the nucleus
electrons particles with an electric charge of 1-
electron cloud area around the nucleus of an atom where electrons are most likely to be found
Created by: MissMJ
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