Periodic Table - The periodic table is a chart that lists all known elements., Inside - Protons are located inside the nucleus., Element - Element: Is a chemical substance that cannot be broken down into a simpler substance and keep the same properties. , Nucleus - The center of an atom is called a nucleus., Electron Cloud - The electron cloud is the area in an atom with the least amount of mass., Mass - Protons + neutrons = Mass, Outside - Electrons are located outside of the nucleus. , Neutron - A neutron has a neutral charge., Atom - An atom is the basic unit of a chemical element. ,

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