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Definition of an "ATOM"
atom- smallest particle of a chemical element. All particles are made up of atoms.
Definition of "ELEMENT"
substances made up of only ONE type of atom
Definition of "COMPOUND"
substances made up of more than one elements chemically bonded together.
how do you find the number of PROTONS in a element from the periodic table
the atomic number = the number of protons
how do you find the number of ELECTRONS in a element from the periodic table
the atomic number = the number of electrons
how do you find the number of NEUTRONS in a element from the periodic table
mass (top number) - atomic number (bottom number) = the number of neutrons