the basic building block of nature that makes up elements (a proton, neutron, or electron)

the amount of protons (positive particles) in an atom

total particles in the nucleus of an atom (protons + neutrons)

an atom with only one type of nucleus with the same amount of protons

physical objects required to complete the experiment

thing kept the same or a known value that does not change in the experiment

thing scientist chooses to do or actively does or analyzes to get results from the experiment

the final product of the lab that scientists figure out or measure at the end of the experiment