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The Atom


Atom The smallest unit of matter. Atoms are made of protons, electrons, and neutrons.
Proton The positively charged part(s) of an atom located in the middle of the atom.
Neutron The part of an atom with no charge (neutral). The neutron(s) are located in the middle of an atom.
Electron The negatively charged part(s) of an atom located on the outside of the atom.
Atomic Number An element's atomic number is equal to the number of protons.
Atomic Mass Atomic mass is equal to the number of protons plus the number of neutrons.
Bohr Model A picture of an atom that includes the protons, neutrons, and ALL the electrons
Lewis Dot Structure A representation of an atom that includes only the atom's symbol and dots to show the number of valence electrons
Ion An atom that has a positive or negative charge because it is missing an electron or has an extra electron.
Created by: cyclonescience