In Sci Concept Review Page – Test on Electrons, bonding What is an atom? What are the fundamental particles that make up the atom? What composes most of the mass of the atom? What occupies most of the space of the atom? What is the mass of a proton or a neutron and how does it compare to an electron’s mass? (see below) What information can be found on the periodic table for each element? What is the atomic number? Can an element have two (on more?) different types or sizes of nuclei? Can they have different numbers of protons? Of neutrons? Of electrons? What is atomic mass? What are isotopes? What is a Bohr orbital (ring) model? Why does the Bohr model not adequately capture the electron configuration of an element? How is a p-orbital shape different from a “Bohr orbit” ring idea? Where are the s, p, d, and f blocks on the periodic table? What is the filling order for the sublevels, and how many electrons can each one hold? What patterns or trends in atom