Pass Your Next Chemistry Test

A proton and neutron In an atom. No way? Discovered in a cathode ray, Were electrons. Unlike protons, Contain a negative charge Though are not large. A proton in an atom In the top not the bottom Is the atomic number. With these tools you will conquer Any test. Taught from the best Such as Democritus. All the particles in the nucleus Can be seen with microscope To be determined an isotope?