Part C Now build a model of salt. Place your materials on a sheet of paper. The regular-size marshmallows can
represent the larger chlorine atoms, and the mini marshmallows can represent the smaller sodium atoms.
Connect the marshmallows with toothpicks using the picture as a guide. What was difficult about building
the model?

Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom