Parts of an atom and definitions
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atom
this is a building block of matter
electron orbit
this refers to the travel of electrons around the nucleus of an atom
nucleus
made up of the protons and neutrons, this part of the atom contains nearly all the mass of the atom
electron
this small particle of an atom carries a negative charge
neutron
this small particle of an atom carries a neutral charge
proton
this small particle of an atom carries a positive charge
