proton: the positively charged particle in the atom that is found with the neutrons in the nucleus
neutron: the neutrally charged particle found with the proton in the nucleus. neutrons add weight to the atom and in larger atoms create radioactivity. subtracting the atomic number (number of protons) from the atomic weight (number of protons and neutrons) gives you the neutron number.
electron:the negatively charged particle found in energy layers around the nucleus. the number of electrons is exactly the same as the number of protons.
neutron: the neutrally charged particle found with the proton in the nucleus. neutrons add weight to the atom and in larger atoms create radioactivity. subtracting the atomic number (number of protons) from the atomic weight (number of protons and neutrons) gives you the neutron number.
electron:the negatively charged particle found in energy layers around the nucleus. the number of electrons is exactly the same as the number of protons.